Technical data for Hammer drive screws with round head

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This product is regulated by the following standards:

Standard UNI 7346

Attention

This standard has been withdrawn

Dimensions in mm - source UNI 7346 - WITHDRAWN
Publication date: 11/1974
d nominal thread size	D min/max	h min/max	d1 min/max	s	hole Ø hard materials	hole Ø soft materials
1.5	2.28÷2.5	0.66÷0.87	1.18÷1.24	1.19	1.32	1.31
1.9
2.5
2.9
3.5
4.2
4.5
5.3
6.1

Dimensions in Inches - source BS 4174 type U
Publication date: 1972
d nominal thread size	Nr. of thread	d min/max	D min/max	h min/max	d1 min/max	s nom	drill Ø	hole Ø
No.00	6	0.057÷0.06	0.09÷0.099	0.026÷0.034	0.046÷0.049	0.02	55	0.052
No.0
No.2
No.4
No.6
No.7
No.8
No.10
No.12

UNI 7346 - Approx. weights, in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial lengths
d thread size	1.5	1.9	2.5	2.9	3.5	4.2	4.5	5.3	6.1
nominal length l
3.5	0.03	0.1	0.18
5
6.5
8
9.5
13
16
19

The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from UNI - Ente italiano di normazione Via Sannio 2 - 20137 Milano, Italy.
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Dimensions in mm - source BS 4174
Publication date 05/1972
size	d max	d min	d2 max	d2 min	d1 max	d1 min	k max	k min
00	1.52	1.45	1.24	1.17	2.51	2.29	0.86	0.66
0
2
4
6
7
8
10
12
L<3.2, S = 0,5 mm , 3.2 ≤L<4, S=0.9mm , 4.5≤L<8,S=1.2 mm ; 9.l5≤L<13;S=1.6 mm 16≤l<22,S=2 mm L>25 , S=3,2 mm .

Technical data for Hammer drive screws with round head

This product is regulated by the following standards:

Standard UNI 7346

Standard BS 4174 22

Hammer drive screws with round head

Suppliers of Hammer drive screws with round head

Manufacturer of solid rivets, semi tubular rivets, fully tubular rivets, self piercing rivets and a wide range of customer specific fasteners

Manufacturer of rivets, blind rivets, riveting machines and self drilling screws

Manufacturer of blind rivets, solid rivets, fully tubular rivets, semi tubular rivets, bifurcated rivets

Distributor of blind rivets, rivet nuts and tools

Manufacturer of special cold forged fasteners. Blind rivets, rivets, semitubular rivets, nails for buttons and jeans, welding clavis pins

Manufacturer of special screws and turned parts

Manufacturer of solid, tubular and semi-tubular rivets, both standard and special. Barrel nuts and thumb screws

Manufacturer and distributor of all fixing products in the field of technical insulation