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1/4 SEMS Machine Screws (ASME B18. 13)
SEMS® Machine Screws are machine screws with pre-assembled captive washers, designed to speed total assembly time in a manufacturing process.
58 results, (click on any line for more information)
| Buy SEMS Machine Screws from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Ababa | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | 1/4-20 x 1/2 p-pan sem int wsh m/s steel znc b18.13 | 200 |
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| Ababa | CA | Sems Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | 1/4-20 x 5/8 p-pan sem int wsh m/s s/s b18.13 | 203 |
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| Ababa | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 7/8 | 1/4-20 x 7/8 p-rnd sems special stl znc b18.13 | 1000 |
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| GLF | OH | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20x5/8 phil pan hd sems internal l/w stl zc b18.13 () () () | 1000 |
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| Irwin Ind | Ont | Sems Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | 1/4-20 x 1/2 | 1/4-20 x 1/2 ind hex ext sems (7/16 a/f) s/s and passivate b18.13 | 3000 |
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| Ababa | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 7/8 | 1/4-20 x 7/8 p-pan sems int wsh m/s stl znc b18.13 | 530 |
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| General F | MI | Sems Machine Screw | Steel | Plain | 1/4-20 x .75 | he 1/4-20 x .75 hex sems w/ext lw b18.13 | 132560 |
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| Exim | S'pore | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/4 | screw hex headsteel blue zn unc 2a w. ext tooth l/w# 1/4-20 x 1-1/4 in b18.13 | 25278 |
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| Exim | S'pore | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 3/4 | screw hex headsteel blue zn w. ext tooth lockwasher# 1/4-20 x 1-3/4 in b18.13 | 24182 |
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| Exim | S'pore | Sems Machine Screw | Steel | Plain | 1/4-20 x 2 | screw hex headsteel clear chromate w.ext tooth l/w# 1/4-20 x 2 in. b18.13 | 22708 |
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| IPC | VA | Sems Machine Screw | Steel | Zinc/Yellow | 1/4-20 x 3/4 | 1/4-20x3/4 indented hex unslotted m/s sems split lockwasher steel zinc yellow large head .438/.428 width across flats and .477 across corners. per asme b18.13 washer & sae j | 34,433 |
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| JET FITTING | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | 1/4-20x1/2 hex steel zinc w/square cone sems 1/4-20 X 1/2 HX HD steel zinc w/ square cone SEMS b18.13 | 4500 |
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| JET FITTING | CA | Sems Machine Screw | Steel | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 phillips pn sq cone sems stl zi 1/4-20 x 1/2 PH PN SQ CONE SEMS STL ZI b18.13 | 11000 |
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| JET FITTING | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20x5/8 steel zinc w/square cone sems 1/4-20 X 5/8 HD steel zinc w/ square cone SEMS b18.13 | 3000 |
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| JET FITTING | CA | Sems Machine Screw | Steel | Plain | 1/4-20 x 3/4 | 1/4-20x3/4 phillips pn sq cone sems stl zi 1/4-20 X 3/4 PH PN SQ CONE SEMS STL ZI b18.13 | 10000 |
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| JET FITTING | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | 1/4-20x1/2 phillips pn steel zinc w/square cone sems 1/4-20 X 1/2 PH PN HD steel zinc w/ square cone SEMS b18.13 | 10000 |
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| QFC | TX | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20x1 unslotted hex head conical sems m/s trivalent zinc b18.13 | 2774 |
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| QFC | TX | Sems Machine Screw | Steel | Plain | 1/4-20 x 1/4 | 1/4-20x1/4 slotted hex ext sem screw b18.13 | 5852 |
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| QFC | TX | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/8 | 1/4-20x3/8 pan head slotted m/s external tooth l/w sems zinc b18.13 | 4000 |
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| QFC | TX | Sems Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Zinc/Clear | 1/4-20 x 3/8 | 1/4-20x3/8 pan head slotted m/s external tooth l/w sems zinc (96 hrs sst white rust) rohs b18.13 | 29310 |
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| QFC | TX | Sems Machine Screw | Steel | Plain | 1/4-20 x 3/8 | 1/4-20x3/8 unslotted hex external sems b18.13 | 4700 |
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| QFC | TX | Sems Machine Screw | Steel | Zinc/Yellow | 1/4-20 x 3/8 | 1/4-20x3/8 slotted pan int sem screw zy b18.13 | 9106 |
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| QFC | TX | Sems Machine Screw | Steel | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 hh dished sems 1/2 od wash b18.13 | 890 |
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| QFC | TX | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | 1/4-20x1/2 pan head slotted m/s external tooth l/w sems zinc b18.13 | 1000 |
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| QFC | TX | Sems Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Zinc/Clear | 1/4-20 x 1/2 | 1/4-20x1/2 pan head slotted m/s external tooth l/w sems zinc (96 hrs sst white rust) rohs b18.13 | 102501 |
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| QFC | TX | Sems Machine Screw | Steel | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 slotted hex ext sem screw b18.13 | 2364 |
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| QFC | TX | Sems Machine Screw | Steel | Plain | 1/4-20 x 5/8 | 1/4-20x5/8 unslotted hex head square cone sems b18.13 | 600 |
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| QFC | TX | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | 1/4-20x3/4 phillips pan head machine screw and external tooth lock washer assembly (sems) zinc plated (96 hrs salt spray test white rust) rohs b18.13 | 10130 |
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| QFC | TX | Sems Machine Screw | Steel | Plain | 1/4-20 x 7/8 | 1/4-20x7/8 slotted hex ext sem screw b18.13 | 453 |
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| QFC | TX | Sems Machine Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Zinc/Clear | 1/4-28 x 7/16 | 1/4-28x7/16 slotted hex head screw with conical washer sems zinc (96hrs sst white rust) rohs b18.13 | 2100 |
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| QFC | TX | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/40 | 1/4-20x.750 phil pan sq.cone sems zinc b18.13 | 1012 |
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| B & K FAST | PA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20 x 5/8 phil round machine screws w/lw zinc b18.13 | 343 |
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| B & K FAST | PA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | 1/4-20 x 3/4 phil round washered m/s zinc b18.13 | 603 |
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| General F | MI | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x .875 | 1/4-20 x .875 phil pn sems nar-l zn b18.13 | 10277 |
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| General F | MI | Sems Machine Screw | Steel | Plain | 1/4-20 x 1 | hf 1/4-20x1 round phil sems w/int lw b18.13 | 13,072 |
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| General F | MI | Sems Machine Screw | Grade 5 | Plain | 1/4-20 x .375 | 1/4-20x.375 phil pn sems grade 5 ext lw b18.13 | 69400 |
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| General F | MI | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20 x 1 pn phil sems zn clr triv b18.13 | 110087 |
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| General F | MI | Sems Machine Screw | Steel | Plain | 1/4-20 x 1 | 1/4-20 x 1 hex hd sems w/helical spr b18.13 | 34100 |
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| General F | MI | Sems Machine Screw | Steel | Zinc/Yellow | 1/4-20 x 1 | 1/4-20 x 1 pn phil con sems zn ylw b18.13 | 5603 |
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| General F | MI | Sems Machine Screw | Steel | Plain | 1/4-20 x .375 | 1/4-20 x .375 hwh quad sems nar-l b18.13 | 17010 |
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| General F | MI | Sems Machine Screw | Steel | Plain | 1/4-20 x 1 3/4 | 1/4-20 x 1.75 phil pn sems con wsh b18.13 | 40340 |
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| General F | MI | Sems Machine Screw | Steel | Plain | 1/4-20 x 2.875 | 1/4-20x2.875 phil pn sems int lw ms b18.13 | 32789 |
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| General F | MI | Sems Machine Screw | Steel | Plain | 1/4-20 x 1/200 | 1/4-20 x .500 quadrex hwh ind sems b18.13 | 119409 |
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| QFC | TX | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20x5/8 hex slotted sq cone sem zinc b18.13 | 5825 |
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| QFC | TX | Sems Machine Screw | Steel | Plain | 1/4-20 x 1/2 | 1/4-20 x 1/2 phil pan ext sem screw b18.13 | 999 |
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| QFC | TX | Sems Machine Screw | Steel | Plain | 1/4-20 x 1/2 | 1/4-20 x 1/2 ind hex external sem screw b18.13 | 1816 |
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| Mid-Valley | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-28 x 5/8 | sems tapping screw b18.13 | inquire |
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| Mid-Valley | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1 1/4 | sems tapping screw b18.13 | inquire |
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| JET FITTING | CA | Sems Machine Screw | Steel | Zinc/Yellow | 1/4-20 x 3/8 | sems m/s split hex ind 1/420x3/8 cadmium plated yellow b18.13 | 400 |
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| JET FITTING | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/8 | sem external pan phillips 1/4-20x3/8 steel zinc plated b18.13 | 975 |
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| JET FITTING | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | sem ext pan phillips 1/420x3/4 steel zinc plated b18.13 | 1000 |
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| JET FITTING | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | sem int pan phillips 1/420x3/4 steel zinc plated b18.13 | 500 |
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| JET FITTING | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | sem s cone hexind slotted 1/420x5/8 steel zinc plated b18.13 | 1990 |
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| JET FITTING | CA | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 3/4 | sem dbl pan phillips 1/420x3/4 steel zinc plated b18.13 | 59520 |
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| THRDFAST | TN | Sems Machine Screw | Steel | Phosphate | 1/4-20 x 1 | hex sems phos. dog pt. b18.13 | 350 |
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| KBS | TN | Sems Machine Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | 1/4-20 x 1/2 sems external pan phil m/s pltd b18.13 | 6,948 |
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| FACCA | Ont | Sems Machine Screw | Steel | Zinc/Yellow | 1/4-20 x 15/16 | sems indented hex hd machine screw with 3/4 od flat washer dog pt 1/4-20 unc x 15/16 low carbon steel zinc dichromate plated b18.13 | 7,500 |
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| FACCA | Ont | Sems Machine Screw | Steel | Plain | 1/4-20 x 15/16 | sems indented hex hd machine screw with 3/4 od flat washer b18.13 | 7500 |
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