Thread Check Inc. Catalog 2025

STANDARD THREAD GAGES

Order No. Go Member

Order No. No Go Member

Price

Order No. Go/No Go Set

Price Gage Length Go

Gage Length No Go

PD Go

PD No Go

Handle #

Inch

(.500) 1/2-13 UNC Taperlock Plug 2B 1/2-13-TPG-2B GO 1/2-13-TPG-2B NGO $54.00 1/2-13-TPG-2B-D/E $122.00 3/4" 3/8" .4500 .4565 2 Taperlock Plug 3B 1/2-13-TPG-3B GO 1/2-13-TPG-3B NGO 54.00 1/2-13-TPG-3B-D/E 122.00 3/4" 3/8" .4500 .4548 2 Reversible Plug 2B 1/2-13-TPG-2B GO-REV 1/2-13-TPG-2B NGO-REV 79.00 1/2-13-TPG-2B-D/E-REV 175.00 1-3/8" 1-3/8" .4500 .4565 5W Reversible Plug 3B 1/2-13-TPG-3B GO-REV 1/2-13-TPG-3B NGO-REV 79.00 1/2-13-TPG-3B-D/E-REV 175.00 1-3/8" 1-3/8" .4500 .4548 5W STI Plug 2B STI-1/2-13-2B-GO STI-1/2-13-2B-NGO 82.00 STI-1/2-13-2B-D/E 178.00 7/8" 1/2" .5499 .5554 3 STI Plug 3B STI-1/2-13-3B-GO STI-1/2-13-3B-NGO 82.00 STI-1/2-13-3B-D/E 178.00 7/8" 1/2" .5499 .5537 3 Ring 2A 1/2-13-TRG-2A GO 1/2-13-TRG-2A NGO 167.00 1/2-13-TRG-2A-SET 334.00 7/16" 7/16" .4485 .4435 3T Ring 3A 1/2-13-TRG-3A GO 1/2-13-TRG-3A NGO 167.00 1/2-13-TRG-3A-SET 334.00 7/16" 7/16" .4500 .4463 3T Set Plug 2A 1/2-13-TSP-2A GO 1/2-13-TSP-2A NGO 121.00 1/2-13-TSP-2A-D/E 256.00 1" 1" .4485 .4435 2 Set Plug 3A 1/2-13-TSP-3A GO 1/2-12-TSP-3A NGO 121.00 1/2-13-TSP-3A-D/E 256.00 1" 1" .4500 .4463 2 (.500) 1/2-16 UN Taperlock Plug 2B 1/2-16-TPG-2B GO 1/2-16-TPG-2B NGO 131.00 1/2-16-TPG-2B-D/E 276.00 3/4" 3/8" .4594 .4655 2 Taperlock Plug 3B 1/2-16-TPG-3B GO 1/2-16-TPG-3B NGO 131.00 1/2-16-TPG-3B-D/E 276.00 3/4" 3/8" .4594 .4640 2 Ring 2A 1/2-16-TRG-2A GO 1/2-16-TRG-2A NGO 348.00 1/2-16-TRG-2A-SET 696.00 7/16" 7/16" .4580 .4533 3T Ring 3A 1/2-16-TRG-3A GO 1/2-16-TRG-3A NGO 348.00 1/2-16-TRG-3A-SET 696.00 7/16" 7/16" .4594 .4559 3T Set Plug 2A 1/2-16-TSP-2A GO 1/2-16-TSP-2A NGO 191.00 1/2-16-TSP-2A-D/E 396.00 1" 1" .4580 .4533 2 Set Plug 3A 1/2-16-TSP-3A GO 1/2-16-TSP-3A NGO 191.00 1/2-16-TSP-3A-D/E 396.00 1" 1" .4594 .4559 2 (.500) 1/2-20 UNF Taperlock Plug 2B 1/2-20-TPG-2B GO 1/2-20-TPG-2B NGO 54.00 1/2-20-TPG-2B-D/E 122.00 3/4" 3/8" .4675 .4731 2 Taperlock Plug 3B 1/2-20-TPG-3B GO 1/2-20-TPG 3B NGO 54.00 1/2-20-TPG-3B-D/E 122.00 3/4" 3/8" .4675 .4717 2 Reversible Plug 2B 1/2-20-TPG-2B GO-REV 1/2-20-TPG-2B NGO-REV 79.00 1/2-20-TPG-2B-D/E-REV 175.00 1-3/8" 1-3/8" .4675 .4731 5W Reversible Plug 3B 1/2-20-TPG-3B GO-REV 1/2-20-TPG-3B NGO-REV 79.00 1/2-20-TPG-3B-D/E-REV 175.00 1-3/8" 1-3/8" .4675 .4717 5W STI Plug 2B STI-1/2-20-2B-GO STI-1/2-20-2B-NGO 82.00 STI-1/2-20-2B-D/E 178.00 7/8" 1/2" .5325 .5371 3 STI Plug 3B STI-1/2-20-3B-GO STI-1/2-20-3B-NGO 82.00 STI-1/2-20-3B-D/E 178.00 7/8" 1/2" .5325 .5357 3 Ring 2A 1/2-20-TRG-2A GO 1/2-20-TRG-2A NGO 167.00 1/2-20-TRG-2A-SET 334.00 7/16" 7/16" .4662 .4619 3T Ring 3A 1/2-20-TRG-3A GO 1/2-20-TRG-3A NGO 167.00 1/2-20-TRG-3A-SET 334.00 7/16" 7/16" .4675 .4643 3T Set Plug 2A 1/2-20-TSP-2A GO 1/2-20-TSP-2A NGO 121.00 1/2-20-TSP-2A-D/E 256.00 1" 1" .4662 .4619 2 Set Plug 3A 1/2-20-TSP-3A GO 1/2-20-TSP 3A NGO 121.00 1/2-20-TSP-3A-D/E 256.00 1" 1" .4675 .4643 2 (.500) 1/2-28 UNEF Taperlock Plug 2B 1/2-28-TPG-2B GO 1/2-28-TPG-2B NGO 105.00 1/2-28-TPG-2B-D/E 224.00 3/4" 3/8" .4768 .4816 2 Taperlock Plug 3B 1/2-28-TPG-3B GO 1/2-28-TPG-3B NGO 105.00 1/2-28-TPG-3B-D/E 224.00 3/4" 3/8" .4768 .4804 2 Reversible Plug 2B 1/2-28-TPG-2B GO-REV 1/2-28-TPG-2B NGO-RE 115.00 1/2-28-TPG-2B-D/E-REV 247.00 1-3/8" 1-3/8" .4768 .4816 5W Reversible Plug 3B 1/2-28-TPG-3B GO-REV 1/2-28-TPG-3B NGO-REV 115.00 1/2-28-TPG-3B-D/E-REV 247.00 1-3/8" 1-3/8" .4768 .4804 5W Ring 2A 1/2-28-TRG-2A GO 1/2-28-TRG-2A NGO 204.00 1/2-28-TRG-2A-SET 408.00 7/16" 7/16" .4757 .4720 3T Ring 3A 1/2-28-TRG-3A GO 1/2-28-TRG-3A NGO 204.00 1/2-28-TRG-3A-SET 408.00 7/16" 7/16" .4768 .4740 3T Set Plug 2A 1/2-28-TSP-2A GO 1/2-28-TSP-2A NGO 184.00 1/2-28-TSP-2A-D/E 382.00 1" 1" .4757 .4720 2 Set Plug 3A 1/2-28-TSP-3A GO 1/2-28-TSP-3A NGO 184.00 1/2-28-TSP-3A-D/E 382.00 1" 1" .4768 .4740 2 (.500) 1/2-32 UN Taperlock Plug 2B 1/2-32-TPG-2B GO 1/2-32-TPG-2B NGO 150.00 1/2-32-TPG-2B-D/E 314.00 3/4" 3/8" .4797 .4842 2 Taperlock Plug 3B 1/2-32-TPG-3B GO 1/2-32-TPG-3B NGO 150.00 1/2-32-TPG-3B-D/E 314.00 3/4" 3/8" .4797 .4831 2 Ring 2A 1/2-32-TRG-2A GO 1/2-32-TRG-2A NGO 396.00 1/2-32-TRG-2A-SET 792.00 7/16" 7/16" .4787 .4752 3T Ring 3A 1/2-32-TRG-3A GO 1/2-32-TRG-3A NGO 396.00 1/2-32-TRG-3A-SET 792.00 7/16" 7/16" .4797 .4771 3T Set Plug 2A 1/2-32-TSP-2A GO 1/2-32-TSP-2A NGO 223.00 1/2-32-TSP-2A-D/E 460.00 1" 1" .4787 .4752 2 Set Plug 3A 1/2-32-TSP-3A GO 1/2-32-TSP-3A NGO 223.00 1/2-32-TSP-3A-D/E 460.00 1" 1" .4797 .4771 2

Rev 3

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