S-98070A210 6-32 x 1/4" Sealing Stainless Steel Phillips Flat Head Screws

Sealing Stainless Steel Phillips Flat Head Screws

0304FA00112 Sealing Stainless Steel Phillips Flat Head Screws
0304FA00112 Sealing Stainless Steel Phillips Flat Head Screws

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

Part No.
Part No. 0304FA00112
Equivalent to mcmaster :
98070A210

Basic Information

Screw Features Sealing
System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 0.279"
Head Height 0.038"
Flat Head Profile Standard

Dimensions

Length 1/4"

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
Drive Size No. 1
Countersink Angle 100°

Material & Strength

Material 18-8 Stainless Steel
Finish Passivated
Hardness Rockwell B70
Tensile Strength 70000 psi

Temperature & Environment

Maximum Pressure 20000 psi
O-Ring Material Silicone Rubber
O-Ring Temperature Range -150° to 500° F
REACH Compliant
RoHS Compliant

Installation & Application

For Maximum Hole Diameter 0.152"
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Reliable sealing performance with a silicone rubber O-ring that maintains integrity across extreme temperatures from -150°F to 500°F, preventing leaks in critical applications.
  • Superior corrosion resistance due to 18-8 stainless steel construction and passivated finish, ensuring long-term durability in harsh environments.
  • High-pressure tolerance up to 20,000 psi, providing secure fastening and sealing in demanding industrial systems.
  • Consistent thread engagement with Class 2A thread fit and UNC coarse threading, enabling easy installation and reliable hold in various materials.
  • Enhanced drive stability with a Phillips No. 1 drive and flat head design, reducing cam-out risks and allowing for flush mounting.
  • Robust mechanical strength featuring 70,000 psi tensile strength and Rockwell B70 hardness, supporting heavy-duty applications without failure.
  • Full compliance with environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.

Professional Applications & Engineering Value

This 6-32 UNC flat head Phillips screw is engineered to address common industrial challenges such as fluid leakage, vibration loosening, and exposure to corrosive elements. The combination of 18-8 stainless steel and a passivated finish provides excellent resistance to rust and chemicals, making it ideal for sealing applications in machinery, automotive assemblies, and plumbing systems. The integrated silicone rubber O-ring ensures a tight seal under varying pressures and temperatures, reducing maintenance needs and downtime. With its fully threaded design and Class 2A thread fit, it offers precise alignment and secure fastening in pre-tapped holes, enhancing operational reliability in high-pressure and temperature-sensitive environments.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy. It is manufactured from 18-8 stainless steel with a passivated finish and includes a silicone rubber O-ring rated for temperatures from -150°F to 500°F. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets international environmental and safety standards for industrial use.

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