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

(1/500) 1 1/2-28 UN Taperlock Plug 2B 1 1/2-28-TPG-2B GO 1 1/2-28-TPG-2B NGO $257.00 1 1/2-28-TPG-2B-D/E $532.00 1" Taperlock Plug 3B 1 1/2-28-TPG-3B GO 1 1/2-28-TPG-3B NGO 257.00 1 1/2-28-TPG-3B-D/E 532.00 1"

3/4" 1.4768 1.4823 5 3/4" 1.4768 1.4809 5

Ring 2A Ring 3A

1 1/2-28-TRG-2A GO 1 1/2-28-TRG-2A NGO 604.00 1 1/2-28-TRG-2A-SET 1208.00 3/4" 3/4" 1.4755 1.4713 6T 1 1/2-28-TRG-3A GO 1 1/2-28-TRG-3A NGO 604.00 1 1/2-28-TRG-3A-SET 1208.00 3/4" 3/4" 1.4768 1.4737 6T 1 1/2-28-TSP-2A GO 1 1/2-28-TSP-2A NGO 372.00 1 1/2-28-TSP-2A-D/E 762.00 1-5/8" 1-5/8" 1.4755 1.4713 5 1 1/2-28-TSP-3A GO 1 1/2-28-TSP-3A NGO 372.00 1 1/2-28-TSP-3A-D/E 762.00 1-5/8" 1-5/8" 1.4768 1.4737 5

Set Plug 2A Set Plug 3A

(1.625) 1 5/8-8 UN Trilock Plug 2B 1 5/8-8-TPG-2B GO 1 5/8-8-TPG-2B NGO 245.00 1 5/8-8-TPG-2B D/E Trilock Plug 3B 1 5/8-8-TPG-3B GO 1 5/8-8-TPG-3B NGO 245.00 1 5/8-8-TPG-3B D/E

508.00 1-1/4" 7/8" 1.5438 1.5535 5-1/2 508.00 1-1/4" 7/8" 1.5438 1.5510 5-1/2

Ring 2A Ring 3A

1 5/8-8-TRG-2A GO 1 5/8-8-TRG-2A NGO 462.00 1 5/8-8-TRG-2A-SET 924.00 1-1/4" 13/16" 1.5416 1.5342 NA 1 5/8-8-TRG-3A GO 1 5/8-8-TRG-3A NGO 462.00 1 5/8-8-TRG-3A-SET 924.00 1-1/4" 13/16" 1.5438 1.5382 NA

Set Plug 2A Set Plug 3A

1 5/8-8-TSP-2A GO 1 5/8-8-TSP-2A NGO 347.00 1 5/8-8-TSP-2A-D/E 1 5/8-8-TSP-3A GO 1 5/8-8-TSP-3A NGO 347.00 1 5/8-8-TSP-3A-D/E

712.00 2-7/8" 1-7/8" 1.5416 1.5342 5-1/2 712.00 2-7/8" 1-7/8" 1.5438 1.5382 5-1/2

(1.625) 1 5/8-12 UN Trilock Plug 2B 1 5/8-12-TPG-2B GO 1 5/8-12-TPG-2B NGO 245.00 1 5/8-12-TPG-2B D/E 508.00 1-1/4" 7/8" 1.5709 1.5785 5-1/2 Trilock Plug 3B 1 5/8-12-TPG-3B GO 1 5/8-12-TPG-3B NGO 245.00 1 5/8-12-TPG-3B D/E 508.00 1-1/4" 7/8" 1.5709 1.5766 5-1/2 Ring 2A 1 5/8-12-TRG-2A GO 1 5/8-12-TRG-2A NGO 462.00 1 5/8-12-TRG-2A-SET 924.00 13/16" 13/16" 1.5691 1.5632 NA Ring 3A 1 5/8-12-TRG-3A GO 1 5/8-12-TRG-3A NGO 462.00 1 5/8-12-TRG-3A-SET 924.00 13/16" 13/16" 1.5709 1.5665 NA Set Plug 2A 1 5/8-12-TSP-2A GO 1 5/8-12-TSP-2A NGO 347.00 1 5/8-12-TSP-2A-D/E 712.00 1-7/8" 1-7/8" 1.5691 1.5632 5-1/2 Set Plug 3A 1 5/8-12-TSP-3A GO 1 5/8-12-TSP-3A NGO 347.00 1 5/8-12-TSP-3A-D/E 712.00 1-7/8" 1-7/8" 1.5709 1.5665 5-1/2 (1.750) 1 3/4-8 UN Trilock Plug 2B 1 3/4-8-TPG-2B GO 1 3/4-8-TPG-2B NGO 260.00 1 3/4-8-TPG-2B D/E 538.00 1-1/4" 7/8" 1.6688 1.6786 5-1/2 Trilock Plug 3B 1 3/4-8-TPG-3B GO 1 3/4-8-TPG-3B NGO 260.00 1 3/4-8-TPG-3B D/E 538.00 1-1/4" 7/8" 1.6688 1.6762 5-1/2 Ring 2A 1 3/4-8-TRG-2A GO 1 3/4-8-TRG-2A NGO 506.00 1 3/4-8-TRG-2A-SET 1012.00 1-1/4" 13/16" 1.6665 1.6590 NA Ring 3A 1 3/4-8-TRG-3A GO 1 3/4-8-TRG-3A NGO 506.00 1 3/4-8-TRG-3A-SET 1012.00 1-1/4" 13/16" 1.6688 1.6631 NA Set Plug 2A 1 3/4-8-TSP-2A GO 1 3/4-8-TSP-2A NGO 370.00 1 3/4-8-TSP-2A-D/E 758.00 2-7/8" 1-7/8" 1.6665 1.6590 5-1/2 Set Plug 3A 1 3/4-8-TSP-3A GO 1 3/4-8-TSP-3A NGO 370.00 1 3/4-8-TSP-3A-D/E 758.00 2-7/8" 1-7/8" 1.6688 1.6631 5-1/2 (1.750) 1 3/4-12 UN Trilock Plug 2B 1 3/4-12-TPG-2B GO 1 3/4-12-TPG-2B NGO 260.00 1 3/4-12-TPG-2B D/E 538.00 1-1/4" 7/8" 1.6959 1.7037 5-1/2 Trilock Plug 3B 1 3/4-12-TPG-3B GO 1 3/4-12-TPG-3B NGO 260.00 1 3/4-12-TPG-3B D/E 538.00 1-1/4" 7/8" 1.6959 1.7017 5-1/2 Ring 2A 1 3/4-12-TRG-2A GO 1 3/4-12-TRG-2A NGO 506.00 1 3/4-12-TRG-2A-SET 1012.00 13/16" 13/16" 1.6941 1.6881 NA Ring 3A 1 3/4-12-TRG-3A GO 1 3/4-12-TRG-3A NGO 506.00 1 3/4-12-TRG-3A-SET 1012.00 13/16" 13/16" 1.6959 1.6914 NA Set Plug 2A 1 3/4-12-TSP-2A GO 1 3/4-12-TSP-2A NGO 370.00 1 3/4-12-TSP-2A-D/E 758.00 1-7/8" 1-7/8" 1.6941 1.6881 5-1/2 Set Plug 3A 1 3/4-12-TSP-3A GO 1 3/4-12-TSP-3A NGO 370.00 1 3/4-12-TSP-3A-D/E 758.00 1-7/8" 1-7/8" 1.6959 1.6914 5-1/2 (1.875) 1 7/8-8 UN Trilock Plug 2B 1 7/8-8-TPG-2B GO 1 7/8-8-TPG-2B NGO 263.00 1 7/8-8-TPG-2B D/E 544.00 1-1/4" 7/8" 1.7938 1.8038 5-1/2 Trilock Plug 3B 1 7/8-8-TPG-3B GO 1 7/8-8-TPG-3B NGO 263.00 1 7/8-8-TPG-3B D/E 544.00 1-1/4" 7/8" 1.7938 1.8013 5-1/2 Ring 2A 1 7/8-8-TRG-2A GO 1 7/8-8-TRG-2A NGO 515.00 1 7/8-8-TRG-2A-SET 1030.00 1-1/4" 13/16" 1.7915 1.7838 NA Ring 3A 1 7/8-8-TRG-3A GO 1 7/8-8-TRG-3A NGO 515.00 1 7/8-8-TRG-3A-SET 1030.00 1-1/4" 13/16" 1.7938 1.7881 NA Set Plug 2A 1 7/8-8-TSP-2A GO 1 7/8-8-TSP-2A NGO 381.00 1 7/8-8-TSP-2A-D/E 780.00 2-7/8" 1-7/8" 1.7915 1.7838 5-1/2 Set Plug 3A 1 7/8-8-TSP-3A GO 1 7/8-8-TSP-3A NGO 381.00 1 7/8-8-TSP-3A-D/E 780.00 2-7/8" 1-7/8" 1.7938 1.7881 5-1/2

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Rev 3