Page 66 - TesaKatalogen

Steel wires, E x ter n al M i c r o meters
hardened
Single XB Wires for Screw Threads
pairs are
supplied in a For measuring pitch diameter of threads using the three-wire method. Actual
plastic box, flank diameter d2 can either be determined arithmetically or with the aid of the
full set in a relevant tables based on the measured actual size M – Suitable for all standard
wooden case micrometers with measuring faces of 6,5 mm diameter.
Wires are
mounted on dD
holders:
2-wire holder d2
rests on M
anvil while the
single wire Diameter of the ISO metric threads Whitworth threads Unified inch-
holder is used wires dD in mm Pitch in mm Number of threads threads UN, UNC,
on spindle side per in UNF Number
of threads per in
Wires in hardened
steel 00240701 0,17 0,25 / 0,3 – –
Single pairs 00240702 0,22
supplied in a plastic 00240703 0,25 0,35 – 72
case, full set in a 00240704 0,29
wooden box. 00240705 0,335 0,4 60 64
Wires mounted on 00240706 0,455
holders: the 2 wire 00240707 0,53 0,45 / 0,5 – 56
holder rests on the 00240708 0,62
anvil, whilst the 00240709 0,725 0,6 48 / 40 48 / 44
single wire holder is 00240710 0,895
used on the spindle 00240711 1,10 0,7 ÷ 0,8 – 32
side. 00240712 1,35
00240713 1,65 0,9 32 / 28 28
00240714 2,05
00240715 2,55 1,0 26 / 24 24
00240716 3,20
1,25 22 ÷ 19 20

1,5 18 / 16 18 / 16

1,75 14 14 / 13

2,0 12 / 11 12 / 11

2,5 10 / 9 10 / 9

3,0 / 3,5 8/7 8/7

4,0 / 4,5 6 6

5,0 / 5,5 5 / 4.5 5 / 4.5

Set of 16 Pairs of XB Wires for Thread Measurement

Diameter of the wires dD in mm
00240700 0,17 ÷ 3,20

C-17