Long Form Certificates are available depending on the gage type. A Certificate of Conformance will be provided at no charge. Please add LFC to the cart if needed! They are located in the Long Form Certificate Category and in each Gage Category.
Please be sure to add your UPS or FedEx Collect account number in at checkout.
Gage size: 1/4"
Threads per inch: 28
Series: UNF
Class: 2B-STI
Material: 01 Tool Steel 60-62 RC
Class W Tolerance
1/4-28 UNF Class 2B-STI Taperlock Screw Thread Insert Plug Gage Set Reference
Taperlock Screw Thread Insert Plug Gage Double-End Set
Part Number: TLTDETT.250-28CL2BSTIREF
Go/NoGo with Handle
Go Pitch Diameter: 0.2732"
NoGo Pitch Diameter: 0.2765"