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5/16"-18 Hex Head Cap Bolts Stainless Steel 18-8 Wax Coated

5/16"-18 Hex Head Cap Bolts Stainless Steel 18-8 Wax Coated

SKU: FN-BLT-HHB-51618-SS18-WX· 3 lengths

Bulk-Only Item

Minimum order quantity: 450 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 →

$223.11/ 450 pcs

$0.50/ea

pack

1 pack × 450 = 450 pieces

In Stock
FN-BLT-HHB-51618-2.25-SS18-CS-PT-EHEX-WX
Free US shipping 30-day returns Ships ~7 business days

5/16-18 hex head cap bolts in 18-8 stainless steel to ASME B18.2.1, wax coated finish. Per ASME B18.2.1, lengths too short for the standard thread length are threaded full length; longer lengths carry the standard thread length shown for each length. A dry wax coating lubricates the thread for smoother, more consistent tightening and helps prevent galling. 3 lengths (3/4" to 3"). Sold in production-volume bulk packs.

Material

Stainless Steel

Finish

Wax Coated

Grade

18-8 (A2-70)

Size

5/16-18

Drive Type

Hex External

Head Style

hex

Standard

ASME B18.2.1

Guides: What does 1/4-20 mean? · 18-8 stainless steel vs. other grades

Technical Specifications

Head StyleHex
Width Across Flats1/2 in
Width Across Corners (max)0.577 in
Head Height0.203 in
Thread5/16-18 UNC (Coarse)
Threads per Inch18
Thread Coverage3/4": full thread; 2-1/4" to 3" lengths: 7/8" of thread
Material18-8 Stainless Steel
Grade18-8 (A2-70)
FinishWax Coated
StandardASME B18.2.1