Mutual Screw & Supply

1/2-13 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (25 / Pkg.)

1/2-13 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | - Main image
$106.52 $143.94 In stock

1/2-13 x 4" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade L9 Alloy Steel Yellow Zinc construction
  • Partially Threaded
  • Hex head for wrench or socket drive
  • Made in the USA
  • Sold in packs of 25

Specifications

  • Thread Size: 1/2-13
  • Length: 4"
  • Threads Per Inch: 13
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 25
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (3.6 / 5 · 5 reviews)

Harper C. ★★★★★

Used these to bolt down a heavy duty workbench and they torqued down smooth without stripping. The partial threading gave just the right grip for a 4" bolt, and the yellow zinc coating looks clean out of the box. Exactly what I needed for the job.

Zoe O. ★★★★☆

The yellow zinc finish held up well during installation without scratching off like cheaper coatings I've used. Threads were clean and the partial threading made alignment easier on the equipment I was working on. Only gripe is the lack of extra thread length for applications needing more engagement

Avery ★★★☆☆

The partially threaded design is handy for certain applications, but I wish the threads were a bit cleaner—a couple bolts had slight burrs. Still, for the price and USA-made quality, they get the job done fine on medium-duty projects.