1/4-28 18-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Fully Threaded
SKU: FN-SS-FHS-1428-FULLTHD· 4 lengths
Bulk-Only Item
Minimum order quantity: 500 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 →
$0.08/ea
1 pack × 500 = 500 pieces
1/4-28 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 5/32" hex socket drive. Fully Threaded across all lengths in this listing (1/2" to 1"). These lengths are threaded the full length of the shank. 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
1/4-28
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
Order any length — 4 in this family
Type the packs you need and press Add; sort any column.
| Head Dia. | Head Ht. | Threading | Drive | Packs | |||||
|---|---|---|---|---|---|---|---|---|---|
| 18-8 Stainless Steel | |||||||||
| 1/4-2818-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Fully Threaded | |||||||||
| 1/2" | 0.531 in | 0.161 in | Fully threaded | Hex Socket | 500 | FN-SS-FHS-1428-0.5-SS18-FN-FT-HEX-PL | $38.46$0.08/eapack of 500 · $0.08 ea | ||
| 5/8" | 0.531 in | 0.161 in | Fully threaded | Hex Socket | 500 | FN-SS-FHS-1428-0.625-SS18-FN-FT-HEX-PL | $49.96$0.10/eapack of 500 · $0.10 ea | ||
| 3/4" | 0.531 in | 0.161 in | Fully threaded | Hex Socket | 250 | FN-SS-FHS-1428-0.75-SS18-FN-FT-HEX-PL | $25.96$0.10/eapack of 250 · $0.10 ea | ||
| 1" | 0.531 in | 0.161 in | Fully threaded | Hex Socket | 100 | FN-SS-FHS-1428-1-SS18-FN-FT-HEX-PL | $16.18$0.16/eapack of 100 · $0.16 ea | ||
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These items count toward the $500 bulk minimum. Mix-and-match to reach it.
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