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 34

Approved Vendor M10-1.5x35 Class 10.9 Hex Flange Bolts Zinc Clear SKU 27313 $1.25
Approved Vendor M10-1.5x35 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 26749 $1.25
Approved Vendor M10-1.5x35 Class 8.8 Hex Cap Screws Zinc Clear SKU 27040 $1.45
Approved Vendor M10-1.5x35 Class 8.8 Hex Flange Bolts Plain & Oil SKU 27477 $1.05
Approved Vendor M10-1.5x35 Class 8.8 Hex Flange Bolts Zinc Clear SKU 27430 $1.37
Approved Vendor M10-1.5x35 Class 8.8 Hex Flange Bolts Zinc Yellow SKU 26772 $1.50
Approved Vendor M10-1.5x40 A4-70 Stainless Steel Hex Cap Screws SKU 6011 $2.81
Approved Vendor M10-1.5x40 Class 10.9 Hex Cap Screws Zinc Clear SKU 26739 $0.93
Approved Vendor M10-1.5x40 Class 10.9 Hex Flange Bolts Phos & Oil SKU 26837 $1.43
Approved Vendor M10-1.5x40 Class 10.9 Hex Flange Bolts Zinc Clear SKU 26985 $1.44
Approved Vendor M10-1.5x40 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 26789 $1.40
Approved Vendor M10-1.5x40 Class 8.8 Hex Cap Screws Zinc Clear SKU 26756 $1.32
Approved Vendor M10-1.5x40 Class 8.8 Hex Flange Bolts Zinc Clear SKU 27294 $1.58
Approved Vendor M10-1.5x40 Class 8.8 Hex Flange Bolts Zinc Yellow SKU 26880 $1.72
Approved Vendor M10-1.5x45 A4-70 Stainless Steel Hex Cap Screws SKU 6012 $3.03
Approved Vendor M10-1.5x45 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27230 $0.47
Approved Vendor M10-1.5x45 Class 10.9 Hex Flange Bolts Zinc Clear SKU 27426 $1.69
Approved Vendor M10-1.5x45 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 27110 $1.45
Approved Vendor M10-1.5x45 Class 8.8 Hex Cap Screws Zinc Clear SKU 27323 $1.00
Approved Vendor M10-1.5x50 A4-70 Stainless Steel Hex Cap Screws SKU 6013 $3.30
Approved Vendor M10-1.5x50 Class 10.9 Hex Cap Screws Zinc Clear SKU 26832 $1.23
Approved Vendor M10-1.5x50 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27109 $1.66
Approved Vendor M10-1.5x50 Class 10.9 Hex Flange Bolts Zinc Clear SKU 27425 $1.84
Approved Vendor M10-1.5x50 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 26887 $1.56
Approved Vendor M10-1.5x50 Class 8.8 Hex Cap Screws Zinc Clear SKU 26905 $0.98
Approved Vendor M10-1.5x50 Class 8.8 Hex Flange Bolts Plain & Oil SKU 27341 $1.36
Approved Vendor M10-1.5x50 Class 8.8 Hex Flange Bolts Zinc Yellow SKU 27476 $1.91
Approved Vendor M10-1.5x55 A4-70 Stainless Steel Hex Cap Screws SKU 6014 $3.50
Approved Vendor M10-1.5x55 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27036 $1.77
Approved Vendor M10-1.5x55 Class 10.9 Hex Flange Bolts Zinc Clear SKU 27424 $1.99
Approved Vendor M10-1.5x60 A4-70 Stainless Steel Hex Cap Screws SKU 6015 $3.83
Approved Vendor M10-1.5x60 Class 10.9 Hex Cap Screws Zinc Clear SKU 27083 $1.54
Approved Vendor M10-1.5x60 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27019 $1.88
Approved Vendor M10-1.5x60 Class 10.9 Hex Flange Bolts Zinc Clear SKU 27423 $2.10
Approved Vendor M10-1.5x60 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 26931 $1.77
Approved Vendor M10-1.5x60 Class 8.8 Hex Cap Screws Zinc Clear SKU 27027 $1.11
Approved Vendor M10-1.5x65 A4-70 Stainless Steel Hex Cap Screws SKU 6016 $4.20
Approved Vendor M10-1.5x65 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27130 $2.00
Approved Vendor M10-1.5x70 A4-70 Stainless Steel Hex Cap Screws SKU 6017 $4.44
Approved Vendor M10-1.5x70 Class 10.9 Hex Cap Screws Zinc Clear SKU 27279 $1.57
Approved Vendor M10-1.5x70 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27108 $2.10
Approved Vendor M10-1.5x70 Class 10.9 Hex Flange Bolts Zinc Clear SKU 27470 $2.34
Approved Vendor M10-1.5x70 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 26922 $2.25
Approved Vendor M10-1.5x70 Class 8.8 Hex Cap Screws Zinc Clear SKU 27239 $1.40
Approved Vendor M10-1.5x70 Class 8.8 Hex Flange Bolts Zinc Yellow SKU 27365 $2.71
Approved Vendor M10-1.5x75 A4-70 Stainless Steel Hex Cap Screws SKU 6018 $4.61
Approved Vendor M10-1.5x75 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27129 $2.41
Approved Vendor M10-1.5x80 A4-70 Stainless Steel Hex Cap Screws SKU 6019 $4.93

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