[800 BULK] Frame Bolts Flange Black Phospohate 5/16-18 X 1 3/4
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[800 BULK] Frame Bolts Flange Black Phospohate 5/16-18 X 1 3/4

Image may not reflect complete product dimensions and specifications. Please call to confirm any questions.

[800 BULK] Frame Bolts Flange Black Phospohate 5/16-18 X 1 3/4

Mutual ScrewSKU: 3128BFKC
Price:
$568.22per 800( $0.71 each)
Pieces 800
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 1-3/4
Material Steel
Grade Grade 8
Finish Black Phosphate
Head style Indented Hex
Threads per inch 18
Weight 40.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

Frame Bolts Flange Black Phospohate 5/16-18 X 1 3/4 — these flange bolts are designed for secure frame mounting with a built-in bearing surface that distributes clamping force evenly. The black phosphate finish provides mild corrosion resistance and a subdued, professional look for mechanical, automotive, and equipment assemblies.

Standard specifications:

Key Features

  • Size & Thread: 5/16-18 UNC
  • Length: 1 3/4 in
  • Head Type: Flange bolt (built-in washer-style flange)
  • Finish: Black phosphate
  • Applications: Frame assemblies, machinery, automotive, equipment mounting

Tips: For best results, pair with compatible flange nuts and ensure proper torque according to your application requirements. The flange helps maintain a secure grip even in vibration-prone environments.

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If you’re not sure that this product is right for you, give us a call!
800-222-0324

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