Services & Capabilities Cold Forging / Forming of Rivets, Fasteners & Microprecision Parts Metal Part Forming Simulation Modeling CapabilitiesProject Showcase Fabricated Low Carbon Steel Delay Core for the Electronics Industry Engineering of a Kovar Weld Stud for the Glass Seal Industry Cold Heading of a Large Headed Rivet in Brass for the Telecommunications Industry Cold Heading of a Stainless Steel Adjusting Screw for the Water Sprinkler Industry Cold Heading of a Brass Split Terminal Pin for the Electronic Connector Industry Cold Heading of Automotive Power Seat Transmissions

Cold Heading of a Stainless Steel Adjusting Screw for the Water Sprinkler Industry

Cold Heading of a Stainless Steel Adjusting Screw for the Water Sprinkler Industry

A client in the water sprinkler industry needed a company with the expertise to re-engineer and convert their adjusting screw fabrication process from screw machined to cold headed. With over 45 years manufacturing precision parts for customers in various industries, C&L was up to the challenge. We consulted with their engineers to design the part from the ground up for form, fit, and function. We designed the tooling, and handled 90% of the tooling fabrication in house. This is a flat head screw, designed for use with a Phillips head screwdriver. 

The part was fabricated primarily using our 2 die 3 blow cold header, manipulating 0.1395" diameter, 302 stainless steel round wire into the specified finished dimensions of 0.805" long with a 0.0164" diameter shank. Tightest tolerance of ± 0.007" was held throughout. Additional thread rolling was also performed, followed by  cleaning and prep for packaging. The customer requested specialized packaging of 26 lb. bags, which we readily accommodated.

As with all of the products fabricated in our ISO 9000:2008 certified facility, this adjusting screw was constructed in compliance of a number of industry standards, including ANSI B18.6.3 1998 requirements for flat head screws. This screw was tested for accuracy and functionality, with dimensional testing and visual testing carried out as well as analyzing all critical dimensions with SPC software., We currently ship 5 - 10 million units annually across the USA, with turnaround times of 10 - 12 weeks. For more details about this screw machining process or to discover more about converting your machined part to the cost effective process of cold heading, please see the table below or contact us directly.

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Cold Heading of a Stainless Steel Adjusting Screw Project Highlights

Product Description This screw is used for adjusting a sprinkler system.
Capabilities Applied/Processes
  • Part Design - Form, Fit, and Functionality
  • Tooling Design
  • Tooling Fabrication (90% in house)
Cold Heading
Thread Rolling
Equipment Used to Manufacture Part 2 Die 3 Blow Cold Header
Secondary Thread Rolling
Overall Part Dimensions Shank: Ø 0.164" ± 0.001"
Length: 0.805" ± 0.010
Tightest Tolerances ± 0.007"
Material Used 302 Stainless Steel
Thickness: Ø 0.1395" round wire
Additional Facts Packaged in 26 lb. bags
Head Style: Flat Head
Screw Driver Type: Phillips Head
In process testing/inspection performed Dimensional Inspection, Visual Inspection
Statistical Process Control (SPC) All Critical Dimensions
Industry for Use Water Sprinkler Industry
Volume 5 - 10 million per year
10,000 pieces per year
Delivery/Turnaround Time 10 - 12 weeks First Release
Delivery Location USA
Standards Met Customer Specifications
ANSI B18.6.3 1998
Product Name Adjusting Screw
Why did you choose this project to show case? To work with customer's engineer from ground up for form fit function to save cost over screw machined product.

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