Hex Bolts & Cap Screws

2,000+ products

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 38

Approved Vendor M14-2.0x100 A4-70 Stainless Steel Hex Cap Screws SKU 6052 $13.87
Approved Vendor M14-2.0x100 Class 10.9 Hex Cap Screws Zinc Clear SKU 27057 $4.80
Approved Vendor M14-2.0x100 Class 10.9 Hex Flange Bolts Phos & Oil SKU 26809 $6.33
Approved Vendor M14-2.0x150 Class 8.8 Hex Cap Screws Zinc Clear SKU 27488 $9.14
Approved Vendor M14-2.0x30 A4-70 Stainless Steel Hex Cap Screws SKU 6043 $6.32
Approved Vendor M14-2.0x30 Class 10.9 Hex Cap Screws Zinc Clear SKU 27485 $2.82
Approved Vendor M14-2.0x30 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27468 $2.79
Approved Vendor M14-2.0x30 Class 8.8 Hex Cap Screws Zinc Clear SKU 27371 $2.17
Approved Vendor M14-2.0x35 A4-70 Stainless Steel Hex Cap Screws SKU 6044 $6.94
Approved Vendor M14-2.0x35 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 27192 $2.68
Approved Vendor M14-2.0x40 A4-70 Stainless Steel Hex Cap Screws SKU 6045 $7.62
Approved Vendor M14-2.0x40 Class 10.9 Hex Cap Screws Zinc Clear SKU 27237 $3.00
Approved Vendor M14-2.0x40 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27389 $3.17
Approved Vendor M14-2.0x40 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 26946 $2.87
Approved Vendor M14-2.0x40 Class 8.8 Hex Cap Screws Zinc Clear SKU 27400 $1.87
Approved Vendor M14-2.0x45 A4-70 Stainless Steel Hex Cap Screws SKU 6046 $8.16
Approved Vendor M14-2.0x45 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27209 $3.37
Approved Vendor M14-2.0x45 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 27359 $3.39
Approved Vendor M14-2.0x50 A4-70 Stainless Steel Hex Cap Screws SKU 6047 $8.42
Approved Vendor M14-2.0x50 Class 10.9 Hex Cap Screws Zinc Clear SKU 27296 $3.36
Approved Vendor M14-2.0x50 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27422 $3.75
Approved Vendor M14-2.0x50 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 27146 $3.21
Approved Vendor M14-2.0x50 Class 8.8 Hex Cap Screws Zinc Clear SKU 27321 $3.74
Approved Vendor M14-2.0x60 A4-70 Stainless Steel Hex Cap Screws SKU 6048 $9.59
Approved Vendor M14-2.0x60 Class 10.9 Hex Cap Screws Zinc Clear SKU 27484 $4.41
Approved Vendor M14-2.0x60 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27270 $4.12
Approved Vendor M14-2.0x60 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 27336 $3.69
Approved Vendor M14-2.0x70 A4-70 Stainless Steel Hex Cap Screws SKU 6049 $10.77
Approved Vendor M14-2.0x70 Class 10.9 Hex Cap Screws Zinc Clear SKU 27483 $3.52
Approved Vendor M14-2.0x70 Class 10.9 Hex Flange Bolts Phos & Oil SKU 27107 $4.60
Approved Vendor M14-2.0x70 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 27208 $4.63
Approved Vendor M14-2.0x80 A4-70 Stainless Steel Hex Cap Screws SKU 6050 $11.90
Approved Vendor M14-2.0x80 Class 10.9 Hex Flange Bolts Phos & Oil SKU 26826 $5.08
Approved Vendor M14-2.0x80 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 26914 $5.10
Approved Vendor M14-2.0x90 A4-70 Stainless Steel Hex Cap Screws SKU 6051 $12.87
Approved Vendor M14-2.0x90 Class 10.9 Hex Cap Screws Zinc Clear SKU 27482 $6.12
Approved Vendor M14-2.0x90 Class 10.9 Hex Flange Bolts Phos & Oil SKU 26968 $5.56
Approved Vendor M14-2.0x90 Class 10.9 Hex Flange Bolts Zinc Yellow SKU 27117 $5.59
Approved Vendor M14-2.0x90 Class 8.8 Hex Cap Screws Zinc Clear SKU 28921 $4.77
Approved Vendor M16-1.50x120 Class 8.8 Hex Cap Screws Zinc Clear SKU 28915 $11.18
Approved Vendor M16-1.50x40 Class 10.9 Fine Thread Hex Cap Screws Zinc Clear SKU 27481 $4.22
Approved Vendor M16-1.50x50 Class 10.9 Fine Thread Hex Cap Screws Zinc Clear SKU 27480 $4.87
Approved Vendor M16-1.50x60 Class 10.9 Fine Thread Hex Cap Screws Zinc Clear SKU 27152 $5.49
Approved Vendor M16-1.50x90 Class 8.8 Hex Cap Screws Zinc Clear SKU 28916 $6.64
Approved Vendor M16-2.00x50 Class 8.8 Full Thread Hex Cap Screws Zinc Clear SKU 28919 $2.37
Approved Vendor M16-2.00x65 Class 10.9 Hex Cap Screws Zinc Yellow SKU 28910 $5.77
Approved Vendor M16-2.00x90 Class 8.8 Full Thread Hex Cap Screws Zinc Clear SKU 28918 $6.56
Approved Vendor M16-2.0x100 A4-70 Stainless Steel Hex Cap Screws SKU 6063 $15.23

More in Fasteners