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≤ Ø 2.8 > Ø 2.8
PM HSSE DIN 371
UNC ANSI B1.1

N310-3 N320-4 N320V-4

N

N310-3

N320-4

N320V-4 V

2B 2B 2B

Ø” d P d 1 l l l d a ID ID ID
2
3
1
2
1
UNC TPI mm mm mm mm mm mm  
* 2 56 2.18 45 9.0 2.8 2.1 2 1.75 101469 143690
* 3 48 2.51 50 10.0 2.8 2.1 2 2.00 101470
4 40 2.84 56 12.0 18 3.5 2.7 3 2.25 101450 101511 142738
5 40 3.17 56 12.0 18 3.5 2.7 3 2.55 101512
6 32 3.50 56 13.0 20 4.0 3.0 3 2.75 101451 101514 144402
8 32 4.16 63 14.0 21 4.5 3.4 3 3.40 101452 101515 142739
10 24 4.82 70 15.0 25 6.0 4.9 3 3.80 101449 101508 142740
12 24 5.48 80 17.0 30 6.0 4.9 3 4.40 101509
1/4 20 6.35 80 17.0 30 7.0 5.5 3 5.10 101448 101507 142741

3B
UNC(J)

Ø” d P d 1 l l l d a UNJC ID
2
3
2
1
1
UNC TPI mm mm mm mm mm mm  
4 40 2.84 56 12.0 18 3.5 2.7 3 2.30 145656
6 32 3.50 56 13.0 20 4.0 3.0 3 2.80 155317
8 32 4.16 63 14.0 21 4.5 3.4 3 3.45 155319

* N320-3

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