Bspt Tap Drill Size Chart Pdf

Nominal size (inches) t p i major diameter (inches) tapping drill size tapping drill size bsp: H1 tap drill diameter mm

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To establish tap drill sizes for metric size roll forming taps tap drill size = basic tap o.d.

Bspt tap drill size chart pdf. Tapping drill sizes imperial threads tap size b.s whit u.n.f u.n.c b.s.f b.s.p b.a drill size drill size drill size drill size drill size tap size drill size 1/16 1.1mm 0 5.1mm 3/32 1.8mm 1/8 2.5mm 11/32 1 4.5mm 5/32 2.9mm 1/8 3/16 3.7mm 5/32 2 5/32 7/32 4.2mm 4.4mm British standard pipe(bspp, bspf) thread form r = basic radius = * 137329 p h = basic depth of thread = *640327 p p = pitch = 1/t.p.i. Tap drill depth 1) e chmf.

Of tap (mm) pitch (mm) tapping drill. Recommended tapping and clearance drill sizes. 15.25 0.6004 3/8 bsp 15.48 0.6094 39/64 15.5 0.6102 met c 18 mm, 11/16 bsf 15.75 0.6201 15.88 0.6252 5/8 16 0.6299 16.25 0.6398 16.27 0.6406 41/64 3/4 whit 16.5 0.6496 3/4 unc, met f 18 mm 16.67 0.6563 21/32 16.75 0.6594 3/4 bsf 17 0.6693 17.07 0.6720 43/64 17.25 0.6791

How to check bsp thread size. Major (ext) minor (int) tap drill: Formula for tap/drill sizes (inch) figures in table show amount to subtract from o.d.

Of screw to obtain specific percentages of thread. 1) for bottoming taps only. 13 rows bspt (taper) bspp (straight) iso (taper) iso (straight) designation pipe size.

Upto 6 mm size, taps will be supplied with male centers on both sides. H3 thread height female thd. 1/4 bsp tap drill size chart.

Select nearest size commercial stock drill. D1 thread height male thd. 147.06 application forming taps cold form threads in ductile materials such as brass, copper, aluminum and leaded steels as well as series 301 to 347 stainless steels.

(threads per inch) iso 228, din 259, bs2779, jis b0202 in japan this thread is known as (pf) use prefix g for parallel thread. 8.8 mm 8.4mm 11/32 inch: 6.6 mm letter drill g 1/8:

Tap drill chart (metric h6) tap size cut tap drill roll tap drill minor ø major ø. Drilled hole size (in.) = basic major dia. Iso metric hss ground threads coarse pitch is 6175 (part 2) 1992 iso 529 1993 (e) is 6175 (part 2) 1992

Tapping drills (mm) for number size threads page 7. British standard pipe thread (bsp) and tapered pipe thread (bsp tr) rc page 8. (mm) — (% of thread desired x mm pitch) 147.06 (example m8 x 1.25 tap with 65% thread) = 8 — (65 x 1.25) = 7.45 mm dia.

0 0.060 80 0.045 3/64 0.047 55 0.052 52 0.064 50 0.070 64 0.054 53 0.060 1/16 0.063 British standard pipe taper (bspt) threads size chart thick‐ ness [mm] 1/16 28 0.907 7.723 0.304 4 1/8 28 0.907 9.728 0.383 4 6 10.2 0.4 2 1/4 19 1.337 13.157 0.518 6 8 13.5 0.53 2.3 3/8 19 1.337 16.662 0.656 6.4 10 17.2 0.68 2.3 1/2 14 1.814 20.995 0.825 8.2 15 21.3 0.84 2.6 5/8 14 1.814 22.911 0.902 16 2.6 3/4 14 1.814 26.441 1.041 9.5 20 26.9 1.06 2.6 American national taper pipe (npt) page 9.

Above 6 mm size, taps will be supplied with female centers on both sides. Thread form data tapping drill clearance drill diameter o/diameter core pitch depth flat effective dia t.p.i dec / met / frac dec / met / frac 6mm 6.00mm 4.70mm 1.00mm 0.650mm 0.125mm 5.350mm 25.40 5.00mm 6.10mm D3 minor diameter female thd.

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