Hex Bolts & Cap Screws

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Expected delivery: Wed, Nov 18

Hex bolts and hex cap screws are the workhorse fasteners for machinery, structural brackets, truck bodies and equipment repair. This section covers inch sizes in UNC and UNF threads and metric sizes in class 8.8 and 10.9, with partial or full threads. Materials include Grade 2, Grade 5 and Grade 8 steel plus 18-8 and 316 stainless, in plain, zinc, yellow zinc and hot-dip galvanized finishes.

What to check before you order

Grade or property class. Match the grade to the load. Grade 5 covers most equipment work, and Grade 8 is for high-stress joints such as suspension and heavy machinery. The hex bolt grades guide shows head markings.
Thread pitch. A 1/2" bolt comes in 1/2"-13 coarse and 1/2"-20 fine. They will not interchange, so confirm the nut or tapped hole first.
Length and thread length. Measure from under the head. Longer bolts are often partially threaded, which leaves a smooth shank in the shear plane.
Finish. Hot-dip galvanized bolts need galvanized nuts, because the coating adds thickness to the threads.

Common questions

Is a Grade 8 bolt always the safer choice?

Not always. Grade 8 is stronger but less ductile than Grade 5. Use the grade the equipment maker or engineer specifies.

Pair your bolts with matching nuts and washers, or browse all fasteners.

Hex Bolts & Cap Screws: page 33

Approved Vendor M10-1.50x30 Class 10.9 Hex Cap Screws Zinc Yellow SKU 26979 $1.16
Approved Vendor M10-1.50x35 Class 10.9 Hex Cap Screws Zinc Yellow SKU 26999 $1.27
Approved Vendor M10-1.50x40 Class 10.9 Hex Cap Screws Zinc Yellow SKU 27071 $1.55
Approved Vendor M10-1.50x45 Class 10.9 Hex Cap Screws Zinc Yellow SKU 27486 $1.68
Approved Vendor M10-1.50x50 Class 10.9 Hex Cap Screws Zinc Yellow SKU 27198 $1.81
Approved Vendor M10-1.50x50 Class 8.8 Full Thread Hex Cap Screws Zinc Clear SKU 27347 $0.87
Approved Vendor M10-1.50x55 Class 8.8 Full Thread Hex Cap Screws Zinc Clear SKU 28925 $1.50
Approved Vendor M10-1.50x60 Class 10.9 Hex Cap Screws Zinc Yellow SKU 27297 $2.06
Approved Vendor M10-1.5x100 A4-70 Stainless Steel Hex Cap Screws SKU 6021 $6.11
Approved Vendor M10-1.5x100 Class 10.9 Hex Flange Bolts Zinc Clear SKU 27361 $3.07
Approved Vendor M10-1.5x100 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 27194 $2.64
Approved Vendor M10-1.5x110 A4-70 Stainless Steel Hex Cap Screws SKU 6022 $6.75
Approved Vendor M10-1.5x110 Class 10.9 Hex Cap Screws Zinc Clear SKU 27439 $3.40
Approved Vendor M10-1.5x110 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27193 $3.26
Approved Vendor M10-1.5x120 A4-70 Stainless Steel Hex Cap Screws SKU 6023 $7.33
Approved Vendor M10-1.5x120 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27128 $3.55
Approved Vendor M10-1.5x130 A4-70 Stainless Steel Hex Cap Screws SKU 6024 $8.09
Approved Vendor M10-1.5x16 A4-70 Stainless Steel Hex Cap Screws SKU 6006 $1.75
Approved Vendor M10-1.5x16 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 27363 $1.20
Approved Vendor M10-1.5x16 Class 8.8 Hex Cap Screws Zinc Clear SKU 27324 $0.53
Approved Vendor M10-1.5x20 A4-70 Stainless Steel Hex Cap Screws SKU 6007 $1.84
Approved Vendor M10-1.5x20 Class 10.9 Hex Cap Screws Zinc Clear SKU 27199 $0.63
Approved Vendor M10-1.5x20 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27131 $1.02
Approved Vendor M10-1.5x20 Class 10.9 Hex Flange Bolts Zinc Clear SKU 27231 $1.11
Approved Vendor M10-1.5x20 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 26915 $1.30
Approved Vendor M10-1.5x20 Class 8.8 Hex Cap Screws Zinc Clear SKU 26895 $0.53
Approved Vendor M10-1.5x20 Class 8.8 Hex Flange Bolts Plain & Oil SKU 27431 $0.91
Approved Vendor M10-1.5x20 Class 8.8 Hex Flange Bolts Zinc Yellow SKU 26932 $1.41
Approved Vendor M10-1.5x22 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27471 $1.08
Approved Vendor M10-1.5x25 A4-70 Stainless Steel Hex Cap Screws SKU 6008 $2.00
Approved Vendor M10-1.5x25 Class 10.9 Hex Cap Screws Zinc Clear SKU 26881 $0.70
Approved Vendor M10-1.5x25 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 26746 $1.21
Approved Vendor M10-1.5x25 Class 8.8 Hex Cap Screws Zinc Clear SKU 26761 $0.56
Approved Vendor M10-1.5x25 Class 8.8 Hex Flange Bolts Plain & Oil SKU 27234 $0.90
Approved Vendor M10-1.5x25 Class 8.8 Hex Flange Bolts Zinc Clear SKU 27176 $1.18
Approved Vendor M10-1.5x25 Class 8.8 Hex Flange Bolts Zinc Yellow SKU 26859 $1.29
Approved Vendor M10-1.5x30 A4-70 Stainless Steel Hex Cap Screws SKU 6009 $2.22
Approved Vendor M10-1.5x30 Brass Hex Cap Screws SKU 28902 $5.78
Approved Vendor M10-1.5x30 Class 10.9 Hex Cap Screws Zinc Clear SKU 26794 $0.77
Approved Vendor M10-1.5x30 Class 10.9 Hex Flange Bolts Phos & Oil SKU 26764 $1.21
Approved Vendor M10-1.5x30 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 26699 $1.11
Approved Vendor M10-1.5x30 Class 8.8 Hex Cap Screws Zinc Clear SKU 26732 $0.60
Approved Vendor M10-1.5x30 Class 8.8 Hex Flange Bolts Plain & Oil SKU 27315 $0.99
Approved Vendor M10-1.5x30 Class 8.8 Hex Flange Bolts Zinc Clear SKU 27342 $1.27
Approved Vendor M10-1.5x30 Class 8.8 Hex Flange Bolts Zinc Yellow SKU 26810 $1.39
Approved Vendor M10-1.5x35 A4-70 Stainless Steel Hex Cap Screws SKU 6010 $2.53
Approved Vendor M10-1.5x35 Class 10.9 Hex Cap Screws Zinc Clear SKU 26951 $0.85
Approved Vendor M10-1.5x35 Class 10.9 Hex Flange Bolts Phos & Oil SKU 26781 $1.29

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