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Fastenio — Precision Fastening Solutions
#5-40 x 1/2" Flat Head Socket Cap Screws Fully Threaded Stainless Steel 18-8

#5-40 x 1/2" Flat Head Socket Cap Screws Fully Threaded Stainless Steel 18-8

SKU: FN-SS-FHS-540-0.5-SS18-CS-FT-HEX-PL

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 →

$10.30/ 1,000 pcs

$0.01/ea

pack

1 pack × 1,000 = 1,000 pieces

In Stock
FN-SS-FHS-540-0.5-SS18-CS-FT-HEX-PL
Free US shipping 30-day returns Ships ~7 business days

#5-40 18-8 stainless steel flat head socket cap screws (Allen head), 82° countersunk, fully threaded, ASME B18.3. Corrosion-resistant stainless with a flush 82° flat countersunk head and 5/64" hex socket drive. Length is measured overall (head included), per countersunk convention. Sold in production-volume bulk packs.

Material

Stainless Steel

Finish

Plain / Natural

Grade

18-8 (A2-70)

Size

#5-40

Drive Type

Hex Socket

Head Style

Flat / Countersunk

Standard

ASME B18.3

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

Technical Specifications

Length1/2"
Drive5/64" Hex Socket
Head StyleFlat Countersunk (82°)
Thread CoverageFully Threaded
Head Diameter0.281 in
Head Height0.090 in
Countersink Angle82 °
Thread5-40 Coarse