5/8-11 18-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Partially Threaded
SKU: FN-SS-FHS-5811-PARTTHD· 6 lengths
Bulk-Only Item
Minimum order quantity: 15 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 →
$3.17/ea
1 pack × 15 = 15 pieces
5/8-11 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 3/8" hex socket drive. 6 lengths (2-1/2"-5"). 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
5/8-11
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 — 6 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 | |||||||||
| 5/8-1118-8 Stainless Steel Flat Head Socket Cap Screws — 82° Countersunk — Partially Threaded | |||||||||
| 2-1/2" | 1.188 in | 0.324 in | Partially threaded | Hex Socket | 15 | FN-SS-FHS-5811-2.5-SS18-CS-PT-HEX-PL | $47.52$3.17/eapack of 15 · $3.17 ea | ||
| 3" | 1.188 in | 0.324 in | Partially threaded | Hex Socket | 10 | FN-SS-FHS-5811-3-SS18-CS-PT-HEX-PL | $42.35$4.24/eapack of 10 · $4.24 ea | ||
| 3-1/2" | 1.188 in | 0.324 in | Partially threaded | Hex Socket | 5 | FN-SS-FHS-5811-3.5-SS18-CS-PT-HEX-PL | $19.30$3.86/eapack of 5 · $3.86 ea | ||
| 4" | 1.188 in | 0.324 in | Partially threaded | Hex Socket | 5 | FN-SS-FHS-5811-4-SS18-CS-PT-HEX-PL | $21.10$4.22/eapack of 5 · $4.22 ea | ||
| 4-1/2" | 1.188 in | 0.324 in | Partially threaded | Hex Socket | 10 | FN-SS-FHS-5811-4.5-SS18-CS-PT-HEX-PL | $36.51$3.65/eapack of 10 · $3.65 ea | ||
| 5" | 1.188 in | 0.324 in | Partially threaded | Hex Socket | 10 | FN-SS-FHS-5811-5-SS18-CS-PT-HEX-PL | $68.77$6.88/eapack of 10 · $6.88 ea | ||
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These items count toward the $500 bulk minimum. Mix-and-match to reach it.
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