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5/16-18 Hex Head Cap Bolts Partially Threaded Stainless Steel 316

5/16-18 Hex Head Cap Bolts Partially Threaded Stainless Steel 316

SKU: FN-BLT-HHB-51618-316-PT· 8 lengths

Bulk-Only Item

Minimum order quantity: 100 pieces per pack. Ships 7 business days after your cart reaches the $500 bulk minimum — bulk-only and regularly-stocked items both count. Learn more →

$50.58/ 100 pcs

$0.51/ea

pack

1 pack × 100 = 100 pieces

In Stock
FN-BLT-HHB-51618-1.5-SS316-CS-PT-EHEX-PL
Free US shipping 30-day returns Ships ~7 business days

5/16-18 316 stainless steel hex head cap screws (hex cap bolts), ASME B18.2.1. A hex head for wrench or socket driving, a smooth shank under the head and a UNC coarse machine thread toward the end. 316 (A4-70) stainless for marine, chemical and outdoor exposure where 18-8 is not enough, plain finish. 8 lengths (1-1/2" to 6"). Sold in production-volume bulk packs.

Material

Stainless Steel

Finish

Plain / Natural

Grade

316 (A4-70)

Size

5/16-18

Drive Type

Hex External

Head Style

hex

Standard

ASME B18.2.1

Technical Specifications

Head StyleHex
Width Across Flats0.500 in
Width Across Corners (max)0.577 in
Head Height0.203 in
Wrench Size1/2"
Thread5/16-18 UNC (Coarse)
Threads per Inch18
Thread Coverage1-1/2" to 6" lengths: 7/8" of thread
Material316 Stainless Steel
Grade316 (A4-70)
FinishPlain
StandardASME B18.2.1