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3/8-24 Hex Bolts

Hex Machine Bolts are threaded bolts with a hexagonal head on one end, with no washer face on the bearing surface and a threaded shaft on the other end. Hex bolts are tightened with a wrench and are used to connect metal parts. The body tolerances of hex machine bolts are not as close as those of hex cap screws. Hex machine bolts are covered under ASME Standard B18.2.1

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
MFSKSHex Machine BoltGrade 2Zinc/Clear3/8-24 x 1/2hex bolt74
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MFSKSHex Machine BoltGrade 5Plain3/8-24 x 1/2hex bolt772
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MFSKSHex Machine BoltGrade 5Zinc/Clear3/8-24 x 1/2hex bolt4023
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AmericanNYHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 5/8hex bolt 18-8 30450
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 5/83/8-24 x 5/8 gr.8 y/zn hex hd bolts f/th a bb 100 fb 500 qk 2500stock
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HodellOHHex Machine BoltGrade 8Black Oxide3/8-24 x 5/83/8-24x5/8 hex hd bolt grade 8 tri/zi/blk100
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HodellOHHex Machine BoltGrade 8Black Oxide3/8-24 x 5/83/8-24x5/8 hex hd boltgrade 8 tri/zi/blk100
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SunPackFLHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 3/43/8-24x3/4 j429 gr8 fin hex bolt yellow zinc fine thread175
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HBBOLTCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 3/4nf h/b z/p800
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SunPackFLHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 3/43/8-24x3/4 j429 gr8 fin hex bolt yellow zinc fine thread fine thread175
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 3/43/8-24 x 3/4 gr.8 y/zn hex hd bolts f/th a bb 100 fb 500 qk 2500stock
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All SizeTXHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 3/43/8-24x3/4 stainless steel hex bolt b18.2.1124
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 53/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 0.828 long 0.188 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-6A7536
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Future FastenerTXHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 7/83/8-24 x 7/8 hex bolt ss42
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All SizeTXHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 7/83/8-24 x 7/8 gr. 8 hex bolt yellow zinc b18.2.1182
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MFSKSHex Machine BoltGrade 8Plain3/8-24 x 7/8hex bolt201
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MFSKSHex Machine BoltGrade 5Zinc/Clear3/8-24 x 7/8hex bolt16
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MFSKSHex Machine BoltGrade 5Zinc/Clear3/8-24 x 7/8hex bolt, locking105
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 7/83/8-24 x 7/8 gr.8 y/zn hex hd bolts f/th1,000
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AIHAZHex Machine BoltSteelPlain3/8-24 x .9383/8-24x.938 grip hex bolt alloy73
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 61/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 0.953 long 0.313 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-7A1418
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SunPackFLHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 13/8-24x1 j429 gr8 fin hex bolt yellow zinc fine thread364
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MESAFASTCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 1h/b gr513.0
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SunPackFLHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 13/8-24x1 j429 gr8 fin hex bolt yellow zinc fine thread fine thread463
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Future FastenerTXHex Machine BoltGrade 8Black Oxide3/8-24 x 13/8-24 x 1 gr8 hex bolt blk27
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 13/8-24 x 1 gr.8 y/zn hex hd bolts612
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MTPCAHex Machine BoltGrade 8Black Oxide3/8-24 x 13/8-24 x 1 gr.8 blk hex hd bolts 100 900stock
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MTPCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 13/8-24 x 1 gr.5 zn hex hd bolts f/th a bb 100 fb 500 qk 2500700
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All SizeTXHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 13/8-24 x 1 hex bolt-ss b18.2.1353
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MFSKSHex Machine BoltGrade 5Plain3/8-24 x 1hex bolt17
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MFSKSHex Machine BoltGrade 2Plain3/8-24 x 1hex bolt54
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MFSKSHex Machine BoltGrade 2Zinc/Clear3/8-24 x 1hex bolt27
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 1 5/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 1.078 long 0.438 grip cadmium plated ams-qq-p-416 type ii class 2 drilled shank only AN6-10911
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RCFastAZHex Machine BoltSteelCadmium/Yellow3/8-24 x 1 13/64an6-11a bolt100
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HayesCAHex Machine BoltSteelPlain3/8-24 x 1.203nas6606-10 3/8-24 x 1.203 hex bolt alloy cadii50
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FTSOHHex Machine BoltSteelZinc/Clear3/8-24 x 1 1/4hex cylndr bdy blt print stl zn/wax 894160325 qc-5 parts to be waxed wax4500
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TSFTXHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 1 1/4hex head bolt 18-8 ss 3/8-24 x 1 1/448
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SunPackFLHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 1 1/43/8-24x1-1/4 j429 gr8 fin hex bolt yellow zinc fine thread25
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SunPackFLHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 1 1/43/8-24x1-1/4 j429 gr8 fin hex bolt yellow zinc fine thread fine thread25
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MTPCAHex Machine BoltGrade 8Black Oxide3/8-24 x 1 1/43/8-24 x 1 1/4 gr.8 blk hex hd bolts f/thstock
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MTPCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 1 1/43/8-24 x 1 1/4 g5 zn hex hd boltsstock
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 1 1/43/8-24 x 1 1/4 gr.8 y/zn hex hd bolts40
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HBBOLTCAHex Machine BoltGrade 9Zinc/Yellow3/8-24 x 1 1/4gr.9 h/b zy400
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Fastener OHHex Machine BoltGrade B7Zinc/Clear3/8-24 x 1 1/4finished hex bolt 3/8-24 (nf)x1 1/4 a193 b7 zinc plated25
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RCFastAZHex Machine BoltSteelCadmium/Yellow3/8-24 x 1 21/64bolt, 3/8-24x1 21/64l hex, cad 2 an6-12a100
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ExpressCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 1 1/23/8-24x1-1/2 fine thread hex bolt grade 5 zinc6
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SunPackFLHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 1 1/23/8-24x1-1/2 j429 gr8 fin hex bolt yellow zinc fine thread289
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SunPackFLHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 1 1/23/8-24x1-1/2 j429 gr8 fin hex bolt yellow zinc fine thread fine thread288
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Future FastenerTXHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 1 1/23/8-24 x 1 1/2 g8 hex bolt yz780
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 1 1/23/8-24 x 1 1/2 gr.8 y/zn hex hd bolts a bb 100 fb 500 qk 250020
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SJS ProdCAHex Machine BoltGrade 5Plain3/8-24 x 1 1/23/8-24 x 1 1/2 hex bolt grd 5 90
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 1 37/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 1.578 long 0.938 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-14A56
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AIHAZHex Machine BoltSteelCadmium3/8-24 x 1.6423/8-24x1.642 hex bolt alloy cad6
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 1 45/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 1.703 long 1.063 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-15A8
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AmericanNYHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 1 3/4h/b 18-8 304100
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MTPCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 1 3/43/8-24 x 1 3/4 gr.5 zn hex hd bolts a bb 50 fb 100 qk 50050
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MTPCAHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 1 3/43/8-24 x 1 3/4 18-8 s.s hex hd boltsstock
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 1 3/43/8-24 x 1 3/4 gr.8 y/zn hex hd bolts f/th600
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WurthINHex Machine BoltSteelCadmium/Yellow3/8-24 x 1 61/64an6-17a 3/8-24 x 2 61/64 hhc600
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 1 61/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 1.953 long 1.313 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-17A10
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LippinCAHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 23/8-24 x 2 hex bolt stainless125
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Future FastenerTXHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 23/8-24 x 2 g8 hex hd bolt y/z1
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 23/8-24 x 2 gr.8 y/zn hex hd boltsstock
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All SizeTXHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 23/8-24 x 2 hex bolt-ss b18.2.1191
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MTPCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 23/8-24 x 2 hex hd bolt gr.5 zinc 550/600
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 23/8-24 x 2 gr.8 y/zn hex hd bolts8,700
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MTPCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 23/8-24 x 2 hex hd bolt gr.5 zinc 550/350
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Fastener OHHex Machine BoltGrade B7Zinc/Clear3/8-24 x 2finished hex head bolt 3/8-24 (nf)x2 a193 b7 zinc plated 34
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RCFastAZHex Machine BoltSteelCadmium/Yellow3/8-24 x 2 5/64an6-20a bolt50
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HayesCAHex Machine BoltSteelCadmium/Yellow3/8-24 x 2 5/64an6-20a 3/8-24 x 2-5/64 hex bolt steel20
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HayesCAHex Machine BoltSteelCadmium/Yellow3/8-24 x 2.204nas6206-28 3/8-24 x 2.204 hex bolt close tol. alloy cad ii50
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MTPCAHex Machine BoltGrade 8Zinc/Clear3/8-24 x 2 1/43/8-24 x 2 1/4 gr.8 zn hex hd bolts a bb 100 fb 500 qk 2500stock
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 2 1/43/8-24 x 2 1/4 gr.8 y/zn hex hd bolts pt10,860
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RCFastAZHex Machine BoltSteelPlain3/8-24 x 2.328bolt (3/8-24 x 2.328) close toll. AN176-22A60
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 2 29/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 2.453 long 1.813 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-23A3530
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 2 1/23/8-24 x 2 1/2 gr.8 y/zn hex hd bolts ftstock
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 2 1/23/8-24 x 2 1/2 gr.8 y/zn hex hd boltsstock
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SJS ProdCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 2 1/23/8-24 x 2 1/2 hex bolt grd 8 zy
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All SizeTXHex Machine BoltGrade 5Plain3/8-24 x 2 1/23/8-24 x 2 1/2 gr. 5 hex bolt b18.2.1352
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 2 1/23/8-24 x 2 1/2 gr.8 y/zn hex hd bolts8,040
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UltraFastWAHex Machine BoltSteelCadmium/Yellow3/8-24 x 2 37/64an6-24ainquire
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MESAFASTCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 2 3/4h/b gr5191.0
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 2 3/43/8-24 x 2 3/4 gr.8 y/zn hex hd bolts100
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 2 53/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 2.828 long 2.188 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-26A398
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Future FastenerTXHex Machine BoltGrade 5Zinc/Clear3/8-24 x 33/8-24 x 3 g5 hex bolt plt50
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 33/8-24 x 3 gr.8 y/zn hex hd bolts a bb 100 fb 500 qk 2500stock
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HayesCAHex Machine BoltSteelCadmium/Yellow3/8-24 x 3 5/64an6-30a 3/8-24 x 3-5/64 hex bolt steel15
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 3 13/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 3.203 long 2.563 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-31A384
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 3 1/43/8-24 x 3 1/4 gr.8 y/zn hex hd bolts ptstock
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All SizeTXHex Machine BoltGrade 8Plain3/8-24 x 3 1/43/8-24 x 3 1/4 gr. 8 hex bolt plain b18.2.144
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 3 1/43/8-24 x 3 1/4 gr.8 y/zn hex hd bolts pt225
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 3 29/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 3.453 long 2.813 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-33A775
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 3 1/23/8-24 x 3 1/2 gr.8 y/zn hex hd bolts a bb 50 fb 100 qk 50075
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All SizeTXHex Machine BoltGrade 8Plain3/8-24 x 3 1/23/8-24 x 3 1/2 gr. 8 hex bolt b18.2.1180
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MESAFASTCAHex Machine Bolt300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 3 1/2h/b 18-8 s/s20.0
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MTPCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 3 1/23/8-24 x 3 1/2 gr.5 zn hex hd bolts ptstock
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 3 3/43/8-24 x 3 3/4 gr.8 y/zn hex hd bolts a bb 100 fb 500 qk 2500150
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All SizeTXHex Machine BoltGrade 8Plain3/8-24 x 3 3/43/8-24 x 3 3/4 gr. 8 hex bolt b18.2.1129
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 3 53/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 3.828 long 3.188 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-36A606
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 3 53/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 3.828 long 3.188 grip cadmium plated ams-qq-p-416 type ii class 2 drilled shank only AN6-36314
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MTPCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 43/8-24 x 4 gr.5 zn hex hd bolts a bb 25 fb 50 qk 250188
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All SizeTXHex Machine BoltGrade 5Plain3/8-24 x 43/8-24 x 4 gr. 5 hex bolt b18.2.150
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 4 1/23/8-24 x 4 1/2 gr.8 y/zn hex hd bolts ptstock
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MTPCAHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 4 1/23/8-24 x 4 1/2 gr.8 y/zn hex hd bolts pt225
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MTPCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 53/8-24 x 5 gr.5 zn hex hd bolts a bb 25 fb 50 qk 250200
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RapidNYHex Machine BoltSteelCadmium/Yellow3/8-24 x 5 13/64bolt machine aircraft alloy steel 3/8-24 unf-3a 0.374-0.371 dia. x 5.203 long 4.563 grip cadmium plated ams-qq-p-416 type ii class 2 un-drilled head & shank AN6-51A1
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Future FastenerTXHex Machine BoltGrade 8Zinc/Yellow3/8-24 x 5 1/23/8-24 x 5 1/2 g8 hex head bolt yel/zinc70
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MTPCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 5 1/23/8-24 x 5 1/2 gr.5 zn hex hd bolts a bb 25 fb 50 qk 25075
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MTPCAHex Machine BoltGrade 5Zinc/Clear3/8-24 x 63/8-24 x 6 gr.5 zn hex hd bolts a bb 25 fb 50 qk 250225
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All SizeTXHex Machine BoltGrade 8Plain3/8-24 x 63/8-24 x 6 gr. 8 hex bolt b18.2.1159
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All SizeTXHex Machine BoltGrade 8Plain3/8-24 x 7 1/23/8-24 x 7 1/2 gr. 8 hex bolt plain b18.2.110
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All SizeTXHex Machine BoltGrade 8Plain3/8-24 x 83/8-24 x 8 gr. 8 hex bolt plain b18.2.122
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All SizeTXHex Machine BoltGrade 8Plain3/8-24 x 93/8-24 x 9 gr. 8 hex bolt b18.2.128
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OneMonroeTXHex Machine BoltSteelCadmium3/8-24bolt hex head 3/8-24 thread grip .892 steel cad plated NAS6206-11-TXG5
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AIHAZHex Machine BoltSteelCadmium/Yellow3/8-243/8-24 bolt hex NAS6206-2414
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