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Fastenio — Precision Fastening Solutions
#4-40 x 1" 18-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Partially Threaded

#4-40 x 1" 18-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Partially Threaded

SKU: FN-SS-FHS-440-PARTTHD

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 →

$28.42/ 1,000 pcs

$0.03/ea

pack

1 pack × 1,000 = 1,000 pieces

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

#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. Length 1". Partially Threaded. 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.

Material

Stainless Steel

Finish

Plain / Natural

Grade

18-8 (A2-70)

Size

#4-40

Drive Type

Hex Socket

Head Style

flat

Standard

ASME B18.3

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

Technical Specifications

Thread Size#4-40
Length1"
Head StyleFlat Countersunk 82°
DriveHex Socket (Allen)
Socket Size1/16"
Thread CoveragePartially Threaded
StandardASME B18.3
Material Grade18-8 (A2-70)
FinishPlain