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OneSource

5/16-18 x 2-1/2 Inch Coarse Zinc Plated A307 Grade A Hex Head Tap Bolt

Item A75.05.516.212

Cap Screws are proportioned and toleranced to assure full and proper loading when assembled into a tapped hole. A washer face is provided under the head to provide a bearing surface when tightened. this feature ensures proper fit-up into tapped holes without counterboring. Cap screws feature a chamfered end to aid in inserting into a tapped hole. Hex head cap screws are available in a variety of material grades including: Grade 2 Grade 5 Grade 8 and stainless steels. Additionally these fasteners are available in plated and plain varieties. Hex head caps screws are a common fastener used in a variety of industrial construction automotive and manufacturing applications.

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Key Specifications

Diameter 5/16 Inch
Drive Type External Hex
Finish Zinc
Grade Grade 2
Head Style Hex
Length 2-1/2 Inch
Material Steel
Measurement Inch
Point Type Machine Screw
Thread Size 5/16-18
Thread Type Coarse

Description

Cap Screws are proportioned and toleranced to assure full and proper loading when assembled into a tapped hole. A washer face is provided under the head to provide a bearing surface when tightened. this feature ensures proper fit-up into tapped holes without counterboring. Cap screws feature a chamfered end to aid in inserting into a tapped hole. Hex head cap screws are available in a variety of material grades including: Grade 2 Grade 5 Grade 8 and stainless steels. Additionally these fasteners are available in plated and plain varieties. Hex head caps screws are a common fastener used in a variety of industrial construction automotive and manufacturing applications.

  • Origin: Imported
  • Finish as per ASTM F1941 Fe/Zn 3AT
  • Finish: Zinc
  • Grade: A
  • Head Height: 0.195 - 0.235 Inch
  • Head Style: 0.019 Inch
  • Item: Tap Bolt
  • Length: 2-1/2 Inch
  • Material: Low Carbon Steel
  • Measurement: Inch
  • Origin: Imported
  • Specification: #21 ASTM A307
  • Thread Length: 2-1/2 Inch
  • Thread Type: Coarse
  • Threads Per Inch: 18
  • Type: Full Threaded
  • Width Across Corner: 0.552 - 0.577 Inch

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