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Fastenio — Precision Fastening Solutions
3/8-16 Hex Flange Bolts 18-8 Stainless Steel

3/8-16 Hex Flange Bolts 18-8 Stainless Steel

SKU: FN-BLT-HFB-3816-SS18· 2 lengths

Bulk-Only Item

Minimum order quantity: 50 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 →

$24.63/ 50 pcs

$0.49/ea

pack

1 pack × 50 = 50 pieces

In Stock
FN-BLT-HFB-3816-0.75-SS18-CS-FT-EHEX-PL
Free US shipping 30-day returns Ships ~7 business days

3/8-16 hex flange bolts in 18-8 stainless steel to IFI-111. A hex flange bolt — also called a frame bolt — carries an integral flange under the head that spreads the clamp load across a wider bearing area, exactly as a separate washer would, so the joint needs one fewer part to handle and install. The flange face is smooth rather than serrated, which suits finished or soft surfaces you do not want marked. Common in machine frames, brackets, automotive assembly and general equipment build. Fully threaded. 2 lengths (3/4" to 1"). Sold in production-volume bulk packs.

Material

Stainless Steel

Finish

Plain / Natural

Grade

18-8 (A2-70)

Size

3/8-16

Drive Type

Hex External

Head Style

hex flange

Standard

IFI-111

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

Technical Specifications

Thread Size3/8-16
StandardIFI-111
Head StyleHex Flange
DriveExternal Hex
Wrench Size (Across Flats)9/16"
Flange Diameter0.810 in
Head Height0.390 in
Flange FaceSmooth (non-serrated)
Thread CoverageFully Threaded
Material Grade18-8 (A2-70)
FinishPlain