S-92800A210 5/16"-18 x 9/16" 18-8 Stainless Steel Hex Head Screws

18-8 Stainless Steel Hex Head Screws

0244FA00998 18-8 Stainless Steel Hex Head Screws
0244FA00998 18-8 Stainless Steel Hex Head Screws

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

Part No.
Part No. 0244FA00998
Equivalent to mcmaster :
92800A210

Basic Information

System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 1/2"
Head Height 13/64"

Dimensions

Length 9/16"

Thread Parameters

Thread Type UNC
Thread Size 5/16"-18
Thread Diameter 0.3125"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style External Hex

Material & Strength

Material 18-8 Stainless Steel
Hardness Rockwell B70
Tensile Strength 80000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
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 18-8 stainless steel construction for long-lasting performance in harsh environments
  • High tensile strength of 80,000 PSI ensures reliable fastening under heavy loads and vibration
  • Rockwell B70 hardness provides excellent wear resistance and durability for repeated use
  • Class 2A thread fit with UNC coarse threading enables quick assembly and reduces cross-threading risks
  • External hex drive design allows for high torque application with standard tools
  • Full threading along the 9/16" length maximizes grip strength and load distribution
  • RoHS 3 and REACH compliance ensures environmental responsibility and regulatory acceptance

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 5/16"-18 UNC hex head screws deliver exceptional performance where corrosion resistance and strength are critical. The 18-8 stainless steel composition provides superior protection against rust and chemical exposure, making them ideal for marine, food processing, and outdoor equipment applications. The coarse UNC thread pattern with Class 2A fit ensures rapid installation while maintaining precise alignment, reducing assembly time and preventing thread damage. With 80,000 PSI tensile strength and external hex drive compatibility, these screws withstand high vibration environments and allow for secure tightening using standard industrial tools. The fully threaded design maximizes surface contact for superior clamping force in structural connections and machinery assembly.

Specification Summary & Compliance

This hex head screw features precise 5/16"-18 UNC coarse threads with Class 2A thread fit per standard inch specifications. The 9/16" length and fully threaded construction ensure consistent performance across the entire fastener. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting current industry standards for hazardous substance restrictions and chemical safety protocols.

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