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#4-40 18-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Partially Threaded

#4-40 18-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Partially Threaded

SKU: FN-SS-FHS-440-PARTTHD· 1 lengths

Bulk-Only Item — drop-shipped from supplier

Minimum order quantity: 1,000 pieces per pack. Ships 7 business days after our supplier minimum is met across compatible items in your cart. Learn more →

tier clears the $1,000 supplier minimum on its own. Lower tiers need to be combined with other Brikksen items to enable checkout.

$28.42/ 1,000 pcs

$0.03/ea

pack

1 pack × 1,000 = 1,000 pieces

Limited stock available — message us before ordering 1,000+ pieces.

Low Stock
FN-SS-FHS-440-1-SS18-CS-PT-HEX-PL
Free US shipping 30-day returns Ships ~7 business days

Bulk-pack #4-40 18-8 stainless steel flat head socket cap screws (Allen head), 82° countersunk, partially threaded, ASME B18.3. Corrosion-resistant 18-8 (A2-70) stainless with a flush 82° flat countersunk head and 1/16" hex socket drive. Partially Threaded across all lengths in this listing (1" to 1"). Longer lengths carry an unthreaded shank below the head per ASME B18.3. Length is measured overall (head included), per countersunk convention. Sold in production-volume bulk packs, drop-shipped.

Material

Stainless Steel

Finish

Plain / Natural

Grade

18-8 (A2-70)

Thread Size

#4-40

Drive Type

Hex Socket

Head Style

flat

Standard

ASME B18.3

Technical Specifications

Drive1/16" Hex Socket
Head StyleFlat Countersunk (82°)
Thread CoveragePartially Threaded
Head Diameter0.255 in
Head Height0.083 in
Countersink Angle82 °
Thread#4-40 Coarse