美標統一螺紋量規符合美國聯邦標準ANSI/ASMEB1.2. 美標統一螺紋環規及螺紋塞規 編 號標準尺寸、每英寸牙數 系 列 代 號 質量(kg)環規塞規925/926-010.073-64UNCUNFUNEFUNUNS0.00310.00064925/926-020.086-560.00480.000684925/926-030.099-480.007480.00075925/926-040.112-400.007420.00083925/926-050.125-400.007420.00083925/926-060.138-320.013850.00099925/926-070.164-320.013850.00099925/926-080.190-240.013650.00125925/926-090.216-240.014550.00277925/926-100.250-200.014550.00277925/926-110.3125-180.0340.00461925/926-120.375-160.040.00736925/926-130.4375-140.07150.01393925/926-140.500-130.07150.01393925/926-150.5625-120.08050.01833925/926-160.625-110.07620.0292925/926-170.750-100.1290.0584925/926-180.875-90.1630.063925/926-191.000-80.180.1345925/926-201.125-70.350.1628925/926-211.250-70.31750.2248925/926-221.375-60.3670.273925/926-231.500-60.430.336925/926-241.750-50.6320.489925/926-252.000-4.50.8180.667注：請按產品直徑、每黃寸牙數和系列代號的產品編號及螺紋精度等級訂貨。我廠可提供1A、2A、3A級的環規和1B、2B、3B級的塞規。