BaerCoil® Wire Thread Inserts BSF

BSF - British Fine Thread

 1.0 D 1.5 D 2.0 D  2.5 D  3.0 D 
TDBTDBTDBTDBTDBmin.max.
BSF 3/16 x 320.1870.3270.2960.2810.4210.3900.3750.5150.4840.4680.6080.5770.5620.7020.6710.2380.253
BSF 7/32 x 280.2180.3790.3430.3280.4890.4530.4370.5980.5620.5460.7070.6710.6560.8170.7810.2770.292
BSF 1/4 x 260.2500.4230.3850.3750.5480.5100.5000.6730.6350.6250.7980.7600.7500.9230.8850.3140.329
BSF 9/32 x 260.2810.4540.4160.4210.5940.5660.5620.7350.6970.7030.8760.8380.8431.0160.9780.3480.363
BSF 5/16 x 220.3120.5160.4710.4690.6730.6280.6250.8290.7840.7810.9850.9400.9371.1411.0960.3890.404
BSF 3/8 x 200.3750.3250.5500.5620.7870.7370.7500.9750.9250.9371.1621.1121.1251.3501.3000.4620.477
BSF 7/16 x 180.4370.6870.6310.6560.9060.8500.8751.1251.0691.0931.3431.2871.3121.5621.5060.5360.555
BSF 1/2 x 160.5000.7810.7190.7501.0310.9691.0001.2811.2191.2501.5311.4691.5001.7811.7190.6110.631
BSF 9/16 x 160.5620.8430.7810.8441.1251.0631.1251.4061.3441.4061.6871.6251.6871.9681.9060.6790.699
BSF 5/8 x 140.6250.9460.8750.9371.2581.1871.2501.5711.5001.5621.8831.8121.8752.1962.1250.7560.776
BSF 11/16 x 140.6871.0080.9371.0311.3521.2811.3751.6961.6251.7182.0391.9682.0622.3832.3120.8240.844
BSF 3/4 x 120.7501.1251.0421.1251.5001.4171.5001.8751.7921.8752.2502.1672.2502.6252.5420.9050.925
BSF 13/16 x 120.8121.1871.1041.2181.5931.5101.6252.0001.9172.0312.4062.3232.4372.8122.7290.9720.992
BSF 7/8 x 110.8751.2841.1931.3121.7211.6301.7502.1592.0682.1872.5962.5052.6253.0342.9431.0481.073
BSF 1“ x 101.0001.4501.3501.5001.9501.8502.0002.4502.3502.5002.9502.8503.0003.4503.3501.1941.219
BSF 1.1/8“ x 91.1251.6251.5141.6872.1872.0762.2502.7502.6392.8123.3123.2013.3753.8753.7641.3411.366
BSF 1.1/4“ x 91.2501.7501.6391.8752.3752.2642.5003.0002.8893.1253.6253.5143.7504.2504.1391.4761.501
BSF 1.3/8“ x 81.3751.9381.8132.0622.6252.5002.7503.3123.1883.4374.0003.8754.1254.6884.5631.6271.657
BSF 1.1/2“ x 81.5002.0631.9382.2502.8132.6883.0003.5633.4383.7504.3134.1884.5005.0634.9381.7621.792

Acronyms

P = Install insert 1/4 - 1/2 pitch below the surface
T = Full tapped thread length (min.)
B = Tap depth - including threads chamfer of plug tap
D = Drill depth (min.) - excluding point
F = Free Coil Diameter