Trusted Internal and External Thread Grinding

Par Manufacturing, Inc. has been providing precision internal and external thread grinding services to companies nation-wide for more than 60 years. We provide thread grinding services for numerous companies in the aerospace and medical industry, including Boeing, Sikorsky Aircraft, Pratt and Whitney Engines, and many more. Our owner-operator and his team have many years of experience. We take pride in our workmanship, quality, fast turnaround time and competitive pricing.

We Offer the Following in External Thread Grinding:

Special Pitches and Forms We Offer:

Our Internal Thread
Grinding Includes:

• 44" Maximum Part Length
• 5" Continuous Thread Length
• Acme Thread Form 29o
• Buttress Thread Form 7o - 45o
• Maximum Bore Ground 9.50"
• Metric Threads
• Minimum Bore Ground .750"
• RH or LH AN Thread Form 60o
• Swing Up To 12"

Quality Control We Offer:

We Also Offer the Following Services:

Feel Free to Call

We are a second generation internal and external thread grinding business. Our reputation has been built on outstanding quality, fair prices and prompt delivery services. Feel free to contact us any time for more information.

Hours of Operation:

Monday to Friday
7:30 AM – 3:30 PM
 
Saturday to Sunday
Closed
 

Areas Served:

• Nationwide