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Fastenio — Precision Fastening Solutions
#4-40 Button Head Socket Cap Screws Fully Threaded Stainless Steel 18-8

#4-40 Button Head Socket Cap Screws Fully Threaded Stainless Steel 18-8

SKU: FN-SS-BC-440-FT· 10 lengths

Bulk-Only Item

Minimum order quantity: 1,000 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 →

$18.50/ 1,000 pcs

$0.02/ea

pack

1 pack × 1,000 = 1,000 pieces

In Stock
FN-SS-BC-440-0.75-SS18-CS-FT-HEX-PL
Free US shipping 30-day returns Ships ~7 business days

#4-40 18-8 stainless steel button head socket cap screws (Allen hex), fully threaded, ASME B18.3. Low-profile button head with a 1/16" hex socket drive. Corrosion-resistant 18-8 (A2-70) stainless, sold in production-volume bulk packs.

Material

Stainless Steel

Finish

Plain / Natural

Grade

18-8 (A2-70)

Size

#4-40

Drive Type

Hex Socket

Head Style

button

Standard

ASME B18.3

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

Technical Specifications

Drive1/16" Hex Socket
Head Diameter0.213 in
Head Height0.059 in
Thread#4-40 Coarse