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Paulin® Papco® 075-556 Partial Threaded Hex Head Cap Screw, 7/16 in, 7 in L Under Head, 5 Grade, Low Carbon Steel, Zinc Chromate Coated



Paulin® Papco® Hex Head Cap Screw, Partial Threaded, Series: 075, Measurement System: Imperial, 7/16 in Thread, 7 in Length Under Head, 5 Grade, Low Carbon Steel, Zinc Chromate Coated, UNC Thread, 5/8 in W x 9/32 in H Head, Hex Head, 120000 psi Tensile Strength, Material Specification: ASME B18.2.1-1996, SAE J429, 1-3/8 in Minimum Thread Length, C25 to C34 Rockwell Hardness


Diameter - Thread Size 7/16 in
Finish Zinc Chromate Coated
Grade 5
Hardness C25 to C34 Rockwell
Head Size 5/8 in W x 9/32 in H
Head Type Hex
Length Under Head 7 in
Material Low Carbon Steel
Material Specification ASME B18.2.1-1996, SAE J429
Measurement System Imperial
Minimum Thread Length 1-3/8 in
Series 075
Tensile Strength 120000 psi
Thread Type UNC
Type Partial Threaded


  • Papco® plated grade 5 cap screws are identified by the three radial bar head marking and are made of medium carbon steel, quenched and tempered for higher Tensile strength and holding power
  • Bright electroplated with chromate finish to resist rust
  • Medium carbon steel quenched and tempered C: 0.28 to 0.55, P: 0.025 maximum, S: 0.025 maximum
  • For studs only, sulfur content may be 0.13% maximum
  • There shall be a sufficient hardenability to ensure a microstructure consisting of approximately 90% martensite in the core of threaded sections of the fasteners after hardening and quenching and before tempering
  • Double heat treated

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