S-90315A474 Length 7/8" Tapping Screws

Tapping Screws

0432FA00020 Tapping Screws
0432FA00020 Tapping Screws

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

Part No.
Part No. 0432FA00020
Equivalent to mcmaster :
90315A474

Basic Information

Tapping Screw Type A/AB
System of Measurement Inch

Head Parameters

Head Type Oval
Head Diameter 0.312"
Head Height 0.152"
Oval Head Profile Standard
Oval Top Height 0.088"

Dimensions

Length 7/8"
Shank Cross Section Round

Thread Parameters

Screw Size No. 8
Thread Diameter 0.164"
Approximate Threads per Inch 15
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Pointed
Drive Style Phillips
Drive Size No. 2
Drill Bit Size No. 29
Drill Bit Diameter 0.136"
Countersink Angle 82°
Tapping Method Thread Forming

Material & Strength

Material 18-8 Stainless Steel

Temperature & Environment

For Use In Sheet Metal
REACH Compliant
RoHS Compliant

Installation & Application

Maximum Drilling Thickness 0.025"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Corrosion-resistant 18-8 stainless steel construction ensures long-term durability and reliability in harsh industrial environments, reducing maintenance costs.
  • Thread forming (Type A/AB) design creates strong, permanent threads in sheet metal without pre-tapping, saving installation time and labor.
  • Oval head with standard profile and 82° countersink angle provides a flush, finished appearance while minimizing snagging in assembled products.
  • No. 2 Phillips drive offers secure tool engagement and efficient driving, reducing cam-out and screw head damage during high-torque applications.
  • Fully threaded shank and pointed tip enable quick, self-starting penetration into materials up to 0.025" thick, ensuring consistent fastening performance.
  • Precise inch dimensions (No. 8 x 7/8") guarantee reliable fit and compatibility with standard sheet metal assemblies and drill bit size No. 29.
  • RoHS 3 and REACH compliance meets stringent environmental and safety regulations, supporting sustainable and responsible manufacturing practices.

Professional Applications & Engineering Value

This No. 8 x 7/8" Phillips oval head tapping screw is engineered for demanding sheet metal applications where vibration resistance and material integrity are critical. The 18-8 stainless steel composition provides excellent corrosion resistance, making it ideal for outdoor equipment, HVAC systems, and electronic enclosures exposed to moisture. Its thread forming technology eliminates the need for separate tapping operations, reducing assembly steps and preventing metal chip generation in sensitive components. The oval head design with an 82° countersink angle ensures a smooth, low-profile finish that enhances product aesthetics and safety. By combining high-strength materials with precision thread diameter and pitch, this screw delivers reliable clamping force and prevents loosening under dynamic loads, addressing common industrial fastening challenges.

Specification Summary & Compliance

This screw features a thread diameter of 0.164" with approximately 15 threads per inch, adhering to standard inch measurement tolerances for consistent performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use. The thread forming (Type A/AB) tapping method and fully threaded design meet common industry specifications for sheet metal fastening, providing reliable engagement without pre-drilled threads.

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