Mutual Screw & Supply

5/8-18 X 3" Hex Head Cap Screws | USA Made | PFC9 Alloy Steel Yellow Zinc (25 / Pkg.)

5/8-18 X 3" Hex Head Cap Screws | USA Made | PFC9 Alloy Steel Yellow Zinc (25 / - Main image
$66.25 $93.31 In stock

5/8-18 x 3" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • PFC9 Alloy Steel Yellow Zinc construction
  • Hex head for wrench or socket drive
  • Made in the USA
  • Sold in packs of 25

Specifications

  • Thread Size: 5/8-18
  • Length: 3"
  • Threads Per Inch: 18
  • Material: Alloy Steel
  • Grade: PFC9
  • Finish: Yellow Zinc CR+6
  • 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 (4.6 / 5 · 5 reviews)

John ★★★★★

Wrenched these into a heavy press today and the threads ran clean with zero binding. The PFC9 alloy takes a beating without the head stripping out, and the yellow zinc finish still looks factory fresh after a full shift.

Ava K. ★★★★★

The yellow zinc coating on these bolts seems really uniform and thick, which is what I needed for outdoor equipment. They drove in clean with a socket and the threads caught right away.

Isabella W. ★★★★★

Threaded these into a piece of heavy equipment and they seated perfectly with no binding. The hex head gave my wrench a solid grip, and the yellow zinc coating has held up well so far.