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Protective Caps & Plugs
In industrial hardware, protective caps and plugs are temporary or permanent covers used to shield open ends, threads, ports, and studs from damage, contamination, and moisture during manufacturing, storage, shipping, or maintenance. They fit over (caps) or into (plugs) features like pipe ends, fittings, hydraulic ports, and screw threads to prevent dirt ingress, corrosion, impact damage, or fluid leakage until the connection is put into service or reused.
0 Protective Caps & Plugs (din 443), showing 200, (click on any line for more information)
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | black plastic bearing cap for 211 housings | 1 |
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| OneMonroe | MN | Protective Caps & Plugs | Chrome Plated | 5/16-18 x 3/4 | cstrswiv2in ball polyo 5/16-18x3/4 stm80# cap bright chrome | 29 |
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| OneMonroe | MN | Protective Caps & Plugs | Rubber, Buna-N, Neoprene etc. | Plain / Furnace Black | 7/16 x 7/8 | caster swivel friction ring stem stem sz 7/16 x 7/8 wheel sz 4 x 1-1/4 wheel mat monotech rubber finish white bearing sealed precision brake load ht 5-3/8 load cap 225 lbs temp rt-45 to +180 f | 150 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1/2-13 x 1 1/2 | caster swivel threaded stem sz 1/2-13 x 1-1/2 wheel sz 3 x 1-1/4 wheel mat gray thermoplastic rubber bearing ball load ht 4-1/8 load cap 210 lbs temp rt-40 to 180 f | 2 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1/2-13 x 1 1/2 | caster swivel threaded stem stm sz 1/2-13unc x 1-1/2 wheel sz 5 x 1-1/4 wheel mat gray thermoplastic rubber bearing precision w/partial thread guard load ht 6-1/8 load cap 280 lbs temp rt-40 to +180 f | 12 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1-1 1/16 | caster swivel expanding adapter stem stm sz 1-1-1/16 wheel sz 6 x 1-1/4 wheel mat gray thermoplastic rubber bearing precision w/full thread guard load ht 7-1/8 load cap 300 lbs temp rt-40 to +180 f | 4 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1/2-13 x 2 13/16 | caster swivel threaded stem stm sz 1/2-13unc x 2-13/16 wheel sz 3-1/2 x 1-1/4 wheel mat gray thermoplastic polyurethane bearing ball w/total lock brake partial thread guard load ht 4-5/8 load cap 275 lbs temp rt-40 to +180 f | 4 |
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| OneMonroe | MN | Protective Caps & Plugs | 3.25 | wheel8x3 poly/ci1in rllr brg 3.25in hub length 2500# cap | 4 |
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| TownCountry | AR | Protective Caps & Plugs | Plastic | caplug cover black | 2000 |
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| TownCountry | AR | Protective Caps & Plugs | Plastic | Zinc/Clear | 3/8 | 3/8 caplug washer | 2000 |
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| Endries | WI | Protective Caps & Plugs | slpp-41 silicone pull plug (polymer molding) | 1000 |
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| Endries | WI | Protective Caps & Plugs | slp-03 silicone tapered plug (polymer molding) | 10000 |
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| Endries | WI | Protective Caps & Plugs | bpf-1/2 polyethylene flush button plug black | 2356 |
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| Endries | WI | Protective Caps & Plugs | 091231-001 upper thread gre ase cap w/st thread sealant | 10008 |
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| Century | FL | Protective Caps & Plugs | 21 | 21 poly cap yellow u-line u-line | 1 |
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| Century | FL | Protective Caps & Plugs | 21 | poly 21 cap red u-line u-line | 1 |
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| Century | FL | Protective Caps & Plugs | Plastic | Plain / Furnace Black | caplug vsr-5500 pvcyel501 yellow nsm capplug vsr-5500 yellow | 300 |
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| Century | FL | Protective Caps & Plugs | 1/2 | apm hexseal he1070 exception 1/2 long 1 each =1 cover & 6 screws per see utec 66-u---2--1391-1 print | 14 |
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| Century | FL | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 21 | uline s-7024w 21in polypropylene bouffant caps 21in white latex free u-line s-7024w | 5 |
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| Century | FL | Protective Caps & Plugs | Plastic | Plain / Furnace Black | caplug vc-187-8 pvcblk100black round vinyl caps capplugs capplugs capplugs | 50 |
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| Century | FL | Protective Caps & Plugs | caplug cec-14 e/vac75 blk001black conductive caps for threaded connectors capplugs capplugs capplugs | 260 |
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| Endries | WI | Protective Caps & Plugs | Plastic | Plain / Furnace Black | .062 x .500 | vc-062-8-blk .062x.500 vinyl round cap black | 440 |
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| Endries | WI | Protective Caps & Plugs | te-901px3 1inx3ft polyester 1-ply twisted eye web sling yellow 1250lb choker capacity (all-lift only) | 20 |
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| Endries | WI | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 237-y tapered cap & plug (niagara plastics) | 25283 |
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| Endries | WI | Protective Caps & Plugs | fp-8 7/8-14 ldpe red flared fitting plug (polymer molding only) | 1450 |
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| IndexFast | CA | Protective Caps & Plugs | Plastic | 62 | mp 1093 hole plug 1 3/32 nylon/black | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Steel | Nickel Plated | 84 | d2783 steel/nkl plug button 7/16 steel/nickel .031-.062 | 11301 |
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| IndexFast | CA | Protective Caps & Plugs | Steel | Zinc/Clear | 11/32 | ss 48153 k2915 plug button steel/zinc .037-.062 | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Plastic | Nickel Plated | 001 | np21010006800 tube closure square 1 steel/nickel 16-18 gauge turn back | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Plastic | Nickel Plated | d3336 steel/nkl plug button 3/8 steel/nickel .015-.039 | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Steel | Zinc/Clear | 11/32 | ms 493242 k2915 | inquire |
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| IndexFast | CA | Protective Caps & Plugs | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 25/32 | ss 51334 k5900 plug button steel/plain .125-.18-8 304 s/s | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Plastic | Plain / Furnace Black | d4455s knockout plug 2 steel/plain | 1191 |
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| IndexFast | CA | Protective Caps & Plugs | Steel | Nickel Plated | 1 | d2730 steel/nkl plug button 5/16 steel/nickel .047-.078 ss 51034 k1110 eq | 5170 |
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| IndexFast | CA | Protective Caps & Plugs | 300 Stainless (A1,A2, 18-8,304,310 etc.) | d02996-005 10-24x2.388 f.h.m.s 18-8 sst | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Steel | Zinc/Clear | 11/32 | ss 50726 k2915 plug button 1 1/4 steel/zinc .062-.093 | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Plastic | 62 | mp 0187 hole plug 3/6 nylon/black | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Plastic | ss 48192 k4800 eq ..plug button 3/8/.037-.078..d3005 s | inquire |
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| IndexFast | CA | Protective Caps & Plugs | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 25/32 | xs 48175 k5900 nde plug button 2 steel/plain .032-.062 d3103 steel/plain (send samples befor | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Steel | Zinc/Yellow | 1 3/8 x 3/8 | ss 48132 k3220 plug button 1 3/8 steel/zinc yellow .109-.141 | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Steel | Zinc/Clear | dfox 832609 soh capped washer type lock nut 8-32 w/mastic sealer/mechanical dot fasteners dfox832609soh(surplus) | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Steel | Zinc/Clear | dfox 832075 soh capped washer type lock nut 8-32 w/mastic sealer/mechanical dot fasteners dfox832075soh(surplus) | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Plastic | Plain / Furnace Black | d4182s standard hole plug 11/64 steel/plain 1/32-3/32 | inquire |
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| IndexFast | CA | Protective Caps & Plugs | Plastic | Plain / Furnace Black | d4153 steel plug button 5/8 steel/plain .062-.109 | inquire |
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| IndexFast | CA | Protective Caps & Plugs | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain / Furnace Black | 25/32 | d2783 steel/plain plug button 7/16 steel/plain .031-.062 ss 51043 k5900 eq | inquire |
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| Set Screw | IL | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 3/8-16 x 1 | 3/8-16x1 hex head cap screw/uss washer/lockwasher/rectangular nut/pan head screw/plastic plugs/instruction sheet folded in poly bags | inquire |
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| Jay-Cee | MI | Protective Caps & Plugs | Plastic | M95339 STEM COLLECTOR END CAP | inquire |
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| S+S Faste | OH | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1 | plastic cap plus plug sr6 red use bulk box p/n 461468 (if we order 1 500/box) use pkg box p/n 009359 (if we order 200/bx) | 77 |
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| S+S Faste | OH | Protective Caps & Plugs | Nylon (Polyamide) | Plain / Furnace Black | cat# dp-500 black nylon plug button | 800 |
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| S+S Faste | OH | Protective Caps & Plugs | Plain / Furnace Black | round black thread protector | 352 |
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| S+S Faste | OH | Protective Caps & Plugs | 300 Stainless (A1,A2, 18-8,304,310 etc.) | 1 1/4 | 1-1/4 plug button stainless steel | 80 |
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| S+S Faste | OH | Protective Caps & Plugs | 3/4 | 3/4 plug buttons | 1904 |
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| RCFast | AZ | Protective Caps & Plugs | Plastic | mcmaster carr (plug, snap-in, poly, 1/2id, 7/8hd diam) | 400 |
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| METRO IND | OH | Protective Caps & Plugs | cat40 x er32 x 6 coolant thru the spindle and din ad+b thru flange capable-end mill holder | 1 |
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| C & S Fas | FL | Protective Caps & Plugs | Plastic | Plain / Furnace Black | .234 x 1.125 | .234 x 1.125 round white vinyl cap for hurricane/storm anchors | 180040 |
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| OneMonroe | MN | Protective Caps & Plugs | Rubber, Buna-N, Neoprene etc. | Plain / Furnace Black | 10 x 3 | wheel sz 10 x 3 mat rubber on cast iron bearing precision tapered roller bearing bore 1 bore less bearing 1.98 hub length 3-1/2 load cap 1000 lbs temp rt-40 to +180 f | 12 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | black plastic bearing cap for 211 housings | 1 |
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| OneMonroe | MN | Protective Caps & Plugs | Chrome Plated | 5/16-18 x 3/4 | cstrswiv2in ball polyo 5/16-18x3/4 stm80# cap bright chrome | 18 |
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| OneMonroe | MN | Protective Caps & Plugs | Chrome Plated | 5/16-18 x 3/4 | cstrswiv2in ball polyo 5/16-18x3/4 stm80# cap bright chrome | 29 |
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| OneMonroe | MN | Protective Caps & Plugs | Rubber, Buna-N, Neoprene etc. | Plain / Furnace Black | 7/16 x 7/8 | caster swivel friction ring stem stem sz 7/16 x 7/8 wheel sz 4 x 1-1/4 wheel mat monotech rubber finish white bearing sealed precision brake load ht 5-3/8 load cap 225 lbs temp rt-45 to +180 f | 150 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1/2-13 x 1 1/2 | caster swivel threaded stem sz 1/2-13 x 1-1/2 wheel sz 3 x 1-1/4 wheel mat gray thermoplastic rubber bearing ball load ht 4-1/8 load cap 210 lbs temp rt-40 to 180 f | 2 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1/2-13 x 2 13/16 | caster swivel threaded stem sz 1/2-13 x 2-13/16 wheel sz 4 x 1-1/4 wheel mat gray thermoplastic rubber bearing ball w/partial thread guard load ht 5-1/8 load cap 260 lbs temp rt-40 to 180 f | 8 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1/2-13 x 2 13/16 | caster swivel threaded stem stm sz 1/2-13unc x 2-13/16 wheel sz 5 x 1-1/4 wheel mat gray thermoplastic rubber bearing precision w/full thread guard load ht 6-1/8 load cap 280 lbs temp rt-40 to +180 f | 16 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1/2-13 x 1 1/2 | caster swivel threaded stem stm sz 1/2-13unc x 1-1/2 wheel sz 5 x 1-1/4 wheel mat gray thermoplastic rubber bearing precision w/partial thread guard load ht 6-1/8 load cap 280 lbs temp rt-40 to +180 f | 20 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1-1 1/16 | caster swivel expanding adapter stem stm sz 1-1-1/16 wheel sz 6 x 1-1/4 wheel mat gray thermoplastic rubber bearing precision w/full thread guard load ht 7-1/8 load cap 300 lbs temp rt-40 to +180 f | 4 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 1/2-13 x 2 13/16 | caster swivel threaded stem stm sz 1/2-13unc x 2-13/16 wheel sz 3-1/2 x 1-1/4 wheel mat gray thermoplastic polyurethane bearing ball w/total lock brake partial thread guard load ht 4-5/8 load cap 275 lbs temp rt-40 to +180 f | 4 |
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| OneMonroe | MN | Protective Caps & Plugs | 3.25 | wheel8x3 poly/ci1in rllr brg 3.25in hub length 2500# cap | 12 |
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| OneMonroe | MN | Protective Caps & Plugs | Steel | Zinc/Clear | 10 x 3 | wheel sz 10 x 3 mat polyurethane on cast iron bearing plain bore bore id 1-15/16 hub length 3-1/4 load cap 3000 lbs temp rt-40 to +180 f | 4 |
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| OneMonroe | MN | Protective Caps & Plugs | Steel | Zinc/Clear | 12 x 3 | wheel sz 12 x 3 mat polyurethane on cast iron bearing plain bore bore id 1-15/16 hub length 3-1/4 load cap 3500 lbs temp rt-40 to +180 f | 7 |
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| OneMonroe | MN | Protective Caps & Plugs | wheel/4x1-1/2ipoly/poly3/4idel brg 500# capacity | 9 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 8 x 2 | wheel sz 8 x 2 mat rubber on polypropylene bearing roller bearing bore 3/4 bore less bearing 1-3/16 hub length 2-3/16 load cap 600 lbs temp rt-45 to +180 f | 4 |
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| OneMonroe | MN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 8 x 2 | wheel sz 8 x 2 mat polyurethane on polypropylene bearing plain bore bore id 1-3/16 hub length 2-3/16 load cap 800 lbs temp rt-40 to +180 f | 34 |
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| Jackson | MS | Protective Caps & Plugs | Plastic | polyethelyn fin. plug 1-1/4 snap in special order part | 100 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | 8-10 | 8-10 pop-on screw cover clay matte | 15700 |
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| Ababa | CA | Protective Caps & Plugs | Steel | Nickel Plated | 1 1/4 | 1 1/4 plug button nickel pltd steel-10 per bx | 5 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | #8 | #8 pop-on poly screw cover base (use w/13835&6) | 3 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Nickel Plated | 1/2 | 1/2 plug button nickel plt | 3 |
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| Ababa | CA | Protective Caps & Plugs | Steel | Nickel Plated | 3/4 | 3/4 button plug steel nickel pltd. | 2 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Nickel Plated | 7/8 | 7/8 plug button nickle pltd | 4 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Nickel Plated | 1 | 1 plug button nickle pltd | 3 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Plain / Furnace Black | .109 x 375 | .109 x 375 vinyl cap-blue (5-40 screw) | 15123 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Plain / Furnace Black | .125 x .500 | .125 x .500 vinyl cap-red (6-32 screw) | 4500 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Plain / Furnace Black | .156 x .500 | .156 x .500 vinyl cap-yellow (10-24/10-32 screw) | 3800 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Plain / Furnace Black | .187 x .500 | .187 x .500 vinyl cap-green (12-24 screw) | 1452 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Plain / Furnace Black | .218 x 375 | .218 x 375 vinyl cap-white (1/4-20&1/4-28 screw) | 278 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Plain / Furnace Black | .218 x .500 | .218 x .500 vinyl cap-black (1/4-20/28 screw) | 4600 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Black Oxide | 3/8 | 3/8 black polypropylene hole plug 3/4 od | 1425 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Plain / Furnace Black | 3/8 | 3/8 vinyl cover (cap) | 340 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Black Oxide | sb-1000-12 black snap bushing (3/4 id) | 290 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | 1.250 | 1.250 sb-1250-16 snap bushing (1.0 id) | 307 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | 2 | 2 snap bushing black | 550 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | Black Oxide | sb-3.000-39 black snap bushing (2.47 id) | 1 |
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| Ababa | CA | Protective Caps & Plugs | Plastic | 4.00 | 4.00 dia hunky dome plug black | 15 |
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| ACCURATE | IL | Protective Caps & Plugs | Plastic | x 6 | 1/4&3/8x6 thread protector | 9500 |
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| SII | IN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | fastcap pvc woodgrain 15/16x600 hard maple | 1 |
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| SII | IN | Protective Caps & Plugs | Plastic | scotch-weld end cap seal 62-9895-0004-2 | 4 |
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| SII | IN | Protective Caps & Plugs | Plastic | uncorded ear plugs 200/box) 1 pair per poly bag 32 decibels | 1 |
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| SII | IN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | single-sided wall sign holder plastic 8 1/2 x 11 clear landscape | 94 |
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| SII | IN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | M89 | 89mm white industry standard plastic cap w/foam liner 624 per box | 624 |
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| SII | IN | Protective Caps & Plugs | Plastic | pip disposable polyurethane foam corded ear plugs-nrr 32 100 per box | 4 |
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| OneMonroe | TX | Protective Caps & Plugs | Plastic | 2.125 | plug protective cap 2.125 | 622 |
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| OneMonroe | TX | Protective Caps & Plugs | Plastic | Plain / Furnace Black | cap std vinyl .140 idx1.0 long 275 degree farenheit | 2000 |
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| OneMonroe | TX | Protective Caps & Plugs | Plastic | Plain / Furnace Black | cap std vinyl .281 idx1.0 long 275 degree farenheit | 975 |
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| OneMonroe | TX | Protective Caps & Plugs | Plastic | Plain / Furnace Black | cap masking .500 idx.500 long std vinyl to 275 degree | 539 |
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| OneMonroe | TX | Protective Caps & Plugs | Steel | Plain / Furnace Black | hole plug 13/32 holex1/2 hd dia steel plain finish | 2073 |
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| OneMonroe | TX | Protective Caps & Plugs | Plastic | Black Oxide | dust cover 25 pin blk | 150 |
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| OneMonroe | TX | Protective Caps & Plugs | Plastic | Black Oxide | dust cover 25 pin blk | 14 |
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| OneMonroe | TX | Protective Caps & Plugs | Plastic | Zinc/Clear | cap 5 patch panel rohs compliant | 1 |
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| OneMonroe | TX | Protective Caps & Plugs | Plastic | Plain / Furnace Black | .187 | caps black round vinyl .187 id | 2597 |
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| SII | IN | Protective Caps & Plugs | Plastic | Plain / Furnace Black | fastcap pvc woodgrain 3/4x250 maple fe | 1 |
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| RePneu To | MI | Protective Caps & Plugs | Plastic | end cap assembly | 1 |
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| RePneu To | MI | Protective Caps & Plugs | Plastic | end cap adapter | 2 |
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| RePneu To | MI | Protective Caps & Plugs | Plastic | cream screw cap cover | 2000 |
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| RePneu To | MI | Protective Caps & Plugs | Plastic | beige screw cap cover | 3000 |
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| RePneu To | MI | Protective Caps & Plugs | Aluminum | aluminum tone screw cap cover | 3000 |
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| FTS | OH | Protective Caps & Plugs | Steel | Plain / Furnace Black | 818-6 | nas818-6 plug (per industry standard) | 400 |
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