4#-40 UNC 304 steel set screw grub screw UNC USA Pitch thread length 1/8-1/2 inch steel inner hex concave hollow end
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In stock
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Low MOQ
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Fastener specialist
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Custom & OEM
Price range: $16.40 through $28.90
Description
4#-40 UNC 304 steel set screw grub screw UNC USA Pitch thread
length 1/8-1/2 inch steel inner hex concave hollow end
Material:304 steel
size: 4#-40 UNC , pitch * thread length Spec : For example 4#-40 UNC, * 3of16 mm means the thread pitch is 4#-40 UNC , , The length is 3/16 inchcolor :siliver
Pls choose the right size to buy.
Fast, tracked worldwide delivery with trade-friendly terms. Our team supports you from the first quote to receipt of goods.
Lead timeIn-stock items ship within 24 hours; bulk and custom orders 5–10 business days.
Minimum orderLow MOQ with volume pricing tiers for trade buyers.
Worldwide deliveryDHL, FedEx and sea freight — fully tracked to your door.
Returns30-day returns on unopened items; free replacement if damaged in transit.
Customer serviceDedicated trade team, Monday–Friday.
Need help?Contact our trade team →
Flexible, secure payment options for both one-off purchases and recurring bulk orders.
Accepted methodsVisa, Mastercard, Amex, PayPal and bank transfer (T/T).
Secure checkoutSSL-encrypted and PCI-compliant — your data stays safe.
Trade termsNet 30 / 60 for approved accounts; deposit + balance for large orders.
CurrencySettled in store currency with multi-currency checkout.
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Standard specifications across our full range. Custom dimensions, finishes and grades available on request — contact our trade team for a tailored quote.
Material
Carbon steel / Stainless steel
Material grade
8.8
Finish
Zinc plated
Thread standard
DIN 933 / ISO 4017
Head type
Hex head
Tensile strength
800 N/mm²
Coating
Zinc plated
Country of origin
CN
SKU
—
Bulk pricing
Specification & price
Box MOQ — 2,000 pcs / box
| Spec | Unit price | Stock | Qty |
|---|---|---|---|
| 1of8-inch / 500pcs | $16.40 | In stock |
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| 3of16-inch / 500pcs | $17.50 | In stock |
|
| 1of4-inch / 500pcs | $18.60 | In stock |
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| 5-of16-inch / 500pcs | $21.20 | In stock |
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| 3of8-inch / 500pcs | $23.80 | In stock |
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| 1of2-inch / 500pcs | $28.90 | In stock |
|