Mutual Screw & Supply

1"-8 X 4-1/2" Heavy Hex Cap Screws | USA Made | A307 Grade B Steel Plain | Partially Threaded (20 / Pkg.)

1"-8 X 4-1/2" Heavy Hex Cap Screws | USA Made | A307 Grade B Steel Plain | - Main image
$117.92 $166.09 In stock

A307 Grade B Steel Plain hex head cap screws, partially threaded, size 1"-8 x 4-1/2". A dependable fastener for machinery, equipment assembly, and general industrial use.

  • A307 Grade B Steel Plain construction
  • partially threaded configuration
  • Hex head for wrench or socket drive
  • For machinery, equipment, and general-purpose fastening

Specifications

  • Thread Size: 1-8
  • Length: 4-1/2"
  • Threads Per Inch: 8
  • Material: A307 Grade B Steel Plain
  • Finish: Plain
  • Thread Style: Partially Threaded
  • Pack Quantity: 20
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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

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Customer Reviews (5.0 / 5 · 5 reviews)

Aurora Z. ★★★★★

Used these to bolt down a heavy press in the shop and the threads seated cleanly with no binding. The A307 grade steel feels solid, and the partially threaded section gave me plenty of grip without needing extra washers. Just wish they came in a smaller pack, but the 20-count is a good value for the

Lily ★★★★★

The partial threading on these is spot on for bolting down thick flanges where you want full thread bite only at the end. Cut them shorter with a saw and they still held torque like a champ on my press frame rebuild.

Joseph ★★★★★

The threads on these 1-inch hex cap screws are machined clean, and the partial threading gives me just enough grip for a heavy equipment frame I’m bolting together. They’re substantial and feel solid in the hand, exactly what I needed for a job that won’t get a second look.