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Fastenio — Precision Fastening Solutions
1/2-13 18-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Fully Threaded

1/2-13 18-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Fully Threaded

SKU: FN-SS-FHS-1213-FULLTHD· 5 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 →

$22.97/ 50 pcs

$0.46/ea

pack

1 pack × 50 = 50 pieces

In Stock
FN-SS-FHS-1213-1-SS18-CS-FT-HEX-PL
Free US shipping 30-day returns Ships ~7 business days

1/2-13 18-8 stainless steel flat head socket cap screws (Allen head), 82° countersunk, fully threaded, ASME B18.3. Corrosion-resistant 18-8 (A2-70) stainless with a flush 82° flat countersunk head and 5/16" hex socket drive. 5 lengths (3/4"-1-3/4"). Length measured overall (head included) per countersunk convention. Ideal for OEM, machinery, and MRO applications.

Material

Stainless Steel

Finish

Plain / Natural

Grade

18-8 (A2-70)

Size

1/2-13

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

Drive5/16" Hex Socket
Head StyleFlat Countersunk (82°)
Thread CoverageFully Threaded
Head Diameter0.938 in
Head Height0.251 in
Countersink Angle82 °
Thread1/2-13 Coarse

Order any length — 5 in this family

Type the packs you need and press Add; sort any column.

Head Dia.Head Ht.ThreadingDrivePacks
18-8 Stainless Steel
1/2-1318-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Fully Threaded
3/4"0.938 in0.251 inFully threadedHex Socket50FN-SS-FHS-1213-0.75-SS18-CS-FT-HEX-PLOut of stock—
1"0.938 in0.251 inFully threadedHex Socket50FN-SS-FHS-1213-1-SS18-CS-FT-HEX-PL$22.97$0.46/eapack of 50 · $0.46 ea
1-1/4"0.938 in0.251 inFully threadedHex Socket25FN-SS-FHS-1213-1.25-SS18-CS-FT-HEX-PL$15.71$0.63/eapack of 25 · $0.63 ea
1-1/2"0.938 in0.251 inFully threadedHex Socket25FN-SS-FHS-1213-1.5-SS18-CS-FT-HEX-PL$22.71$0.91/eapack of 25 · $0.91 ea
1-3/4"0.938 in0.251 inFully threadedHex Socket25FN-SS-FHS-1213-1.75-SS18-CS-FT-HEX-PL$20.09$0.80/eapack of 25 · $0.80 ea