S-91440A153 6-32 x 1" ASME B18.6.3 Steel Round Head Combination Phillips/Slotted Screws

Steel Round Head Combination Phillips/Slotted Screws

0168FA00004 Steel Round Head Combination Phillips/Slotted Screws
0168FA00004 Steel Round Head Combination Phillips/Slotted Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0168FA00004
Equivalent to mcmaster :
91440A153

Basic Information

System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.26"
Head Height 0.103"
Rounded Head Profile Standard
Rounded Head Style Round

Dimensions

Length 1"

Thread Parameters

Thread Type UNC
Thread Size 6-32
Thread Diameter 0.138"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Phillips/Slotted
Drive Size No. 2

Material & Strength

Material Zinc-Plated Steel
Hardness Rockwell B70
Tensile Strength 60000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.6.3
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding environments
  • High tensile strength of 60,000 psi ensures reliable fastening under mechanical stress and vibration
  • Dual Phillips/Slotted drive options provide installation flexibility with standard tools
  • Class 2A thread fit with UNC coarse threading delivers consistent engagement and prevents cross-threading
  • Fully threaded design maximizes grip length and load distribution across applications
  • Rockwell B70 hardness rating maintains structural integrity through repeated use
  • Rounded head profile offers smooth surface finish and reduced snagging risks

Professional Applications & Engineering Value

Engineered for industrial assembly and machinery applications, these zinc-plated steel rounded head screws address critical fastening challenges where corrosion resistance and mechanical reliability are paramount. The UNC coarse thread configuration ensures rapid installation in metal, plastic, and composite materials while maintaining vibration resistance. With 60,000 psi tensile strength and Rockwell B70 hardness, these fully threaded screws prevent joint failure in high-stress environments. The dual Phillips/Slotted drive accommodates various tooling setups, making them ideal for maintenance operations, electrical enclosures, and production line equipment where accessibility and durability are essential.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerances for precision engagement. The 6-32 UNC coarse thread maintains standard compatibility across industrial components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe usage in commercial and industrial settings. Dimensional accuracy includes 1" length, 0.26" head diameter, and standardized rounded head profile for consistent performance.

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