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Suppliers of Spring-type straight pins. Coiled, heavy duty

This product is regulated by the following standards:

DIN EN ISO 8748 (Equivalent standards: BS EN ISO 8748, ISO 8738, NF EN ISO 8748) DIN 7344 UNI 6876

Technical data

Standard DIN EN ISO 8748

Equivalent standards:
  • BS EN ISO 8748
  • ISO 8738
  • NF EN ISO 8748

This standard (DIN EN ISO 8748) specifies the characteristics of coiled spring type straight pins heavy duty, made of steel or of martensitic or austenitic stainless steel, heavy duty with nominal diameter from 1,5 to 20 mm inclusive.

Dimensions in mm - source DIN EN ISO 8748
Publication date 07/2007 - Supersedes DIN EN ISO 8748: 03/1998

d1  nom

 1.5 2 2.5 3 3.5 4 5 6 8 10 12 14 16 20
d1 min/max before mounting

1.61

1.71

2.11

2.21

2.62

2.73

3.12

3.25

3.64

3.79

4.15

4.3

5.15

5.35

6.18

6.4

8.25

8.55

10.3

10.65

12.35

12.75

14.4

14.85

16.4

16.9

20.4

21
d max before mounting 1.4 1.9 2.4 2.9 3.4 3.9 4.85 5.85 7.8 9.75 11.7 13.6 15.6 19.6
a ≈ 0.5 0.7 0.7 0.9 1 1.1 1.3 1.5 2 2.5 3 3.5 4 4.5
s 0.17 0.22 0.28 0.33 0.39 0.45 0.56 0.67 0.9 1.1 1.3 1.6 1.8 2.2
Minimum double sear, kN a 1.9 3.5 5.5 7.6 10 13.5 20 30 53 84 120 165 210 340
Minimum double sear, kN

b

 1.45 2.5 3.8 5.7 7.6 10 15.5 23 41 64 91 - - -

a) applies to steel and martensitic stainless steel products

b) applies to austenitic stainless steel products

DIN EN ISO 8748 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial lengths
nominal size
2
2.5
3
3.5
4
5
6
8
10
12
14
16
20
nominal length l                          
4 0.08                        
5 0.09 0.14                      
6 0.11 0.17 0.25 0.34                  
8 0.15 0.23 0.33 0.45 0.59                
10 0.19 0.29 0.41 0.57 0.74 1.14              
12 0.23 0.34 0.5 0.68 0.89 1.37 1.63            
14 0.27 0.4 0.58 0.79 1.04 1.6 1.96            
16 0.30 0.46 0.66 0.91 1.19 1.83 2.61 4.75          
18 0.34 0.51 0.75 1.02 1.34 2.06 2.93 5.34          
20 0.38 0.57 0.83 1.13 1.48 2.29 3.26 5.93 9.3        
22 0.42 0.63 0.91 1.25 1.63 2.51 3.59 6.53 10.3        
24 0.46 0.69 0.99 1.36 1.78 2.74 3.91 7.12 11.2 16      
26 0.49 0.74 1.08 1.47 1.93 2.97 4.24 7.71 12.1 17.4      
28 0.53 0.8 1.16 1.59 2.08 3.2 4.57 8.31 13.1 18.7 25.4    
30 0.57 0.86 1.24 1.7 2.23 3.43 4.89 8.9 14 20 27.2    
32 0.61 0.91 1.33 1.81 2.37 3.66 5.22 9.5 14.9 21.4 29 36.8  
35 0.66 1 1.45 1.98 2.6 4 5.71 10.39 16.3 23.4 31.7 10.3  
40 0.76 1.14 1.66 2.27 2.97 4.57 6.52 11.87 18.7 26.7 36.2 46  
45   1.29 1.87 2.25 3.34 5.14 7.34 13.35 21 30.1 40.8 51.8 83.4
50     2.07 2.83 3.71 5.71 8.15 14.84 23.3 33.4 45.3 57.6 92.7
55         4.08 6.29 8.97 16.32 25.6 36.8 49.8 63.3 102
60         4.45 6.86 9.78 17.8 28 40.1 54.4 69.1 111.2
65             10.6 19.29 30.3 43.4 58.9 74.8 120.5
70             11.41 20.77 32.6 46.8 63.4 80.6 129.8
75             12.23 22.25 35 50.1 68 86.3 139.1
80               23.74 37.3 53.5 72.5 92.1 148.3
85               25.22 39.6 56.8 77 97.8 157.6
90               26.71 42 60.1 81.6 103.6 166.9
95               28.19 44.3 63.5 86.1 109.3 176.1
100               29.67 46.6 66.8 90.6 115.1 185.4
120               35.61 56 80.2 108.7 138.1 222.5
140                   93.5 126.9 161.1 259.6
160                   106.9 145 184.2 296.6
180                     163.1 207.2 333.7
200                     181.2 230.2 370.8

Standard DIN 7344

Spring-type straight pins. Coiled, heavy duty

Dimensions in mm - source  DIN 7344  Withdrawn

Publication date: 04 - 1969
d nom diameter
 Ø1.5 Ø2 Ø2.5 Ø3 Ø4 Ø5 Ø6
d min 1.61 2.11 2.62 3.12 4.15 5.15 6.18
d max 1.71 2.21 2.73 3.25 4.3 5.35 6.4
d1 mx 1.4 1.9 2.35 2.85 3.8 4.8 5.8
d1 min 1.3 1.75 2.2 2.7 3.6 4.5 5.4
a ≈ 0.5 0.7 0.8 1 1.3 1.7 2
s 0.17 0.22 0.28 0.33 0.45 0.56 0.67
Minimum shear strength, single (kp) 91 157 237 343 614 946 1350
Minimum Double Shear (kp) 182 314 474 686 1228 1892 2700

DIN 7344 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm3)
d nominal size
 1.5
2
2.5
3
4
5
6
nominal length l              
4 0.043            
5 0.053            
6 0.064 0.11 0.17        
8 0.085 0.15 0.23 0.33      
10 0.107 0.19 0.29 0.41 0.74    
12 0.128 0.23 0.34 0.5 0.89 1.37  
14 0.15 0.27 0.4 0.58 1.04 1.6 2.35
16 0.171 0.30 0.46 0.66 1.19 1.83 2.69
18   0.34 0.51 0.75 1.33 2.06 3.03
20   0.38 0.57 0.83 1.48 2.28 3.36
22     0.63 0.91 1.63 2.51 3.7
24     0.69 0.99 1.78 2.74 4.04
26       1.08 1.93 2.97 4.37
28       1.16 2.08 3.2 4.7
30       1.24 2.22 3.43 5.04
32       1.32 2.37 3.66 5.37
36         2.67 4.11 6.05
40         2.96 4.57 6.72
45           5.14 7.56
50           5.71 8.41

Standard UNI 6876

Spring-type straight pins

Dimensions in mm - source  UNI 6876  Withdrawn

Publication date: 12/1971
dimensions
 Ø1.5 Ø2 Ø2.5 Ø3 Ø4 Ø5 Ø6 Ø8
d nom 1.6 2.1 2.6 3.12 4.15 5.15 6.25 8.25
d1 nom 1.4 1.9 2.35 2.85 3.8 4.8 5.8 7.8
a ≈ 0.5 0.7 0.8 1 1.3 1.7 2 2
s 0.17 0.22 0.28 0.33 0.45 0.56 0.67 0.9

Full list of Suppliers of Spring-type straight pins. Coiled, heavy duty

India

Circlips Technologie Pvt. Ltd.

Distributor of circlips, snap rings, retaining rings, shim rigs, spacers, washers and pins

India

Presstech India

Manufacturer of  circlips, snap rings, dowel pins, washers, hose clamp

Japan

Taiyo Stainless Spring Co. Ltd.

Manufacturer of spring metallic parts: pins, rings, cotter pins...

Taiwan

Yung King Industries Co., Ltd

Manufacturer of cotter pins, hitch pin clips, dowel pins

Quality certificate: ISO 9001:2008

Italy

SALCA Srl

Manufacturing and distribution of self tapping bushings,  WTI helical inserts, grooved pins, grooved nails, expansion rivets and nails with grooves Kerpin®, trilobular threaded inserts, self clinching studs, standard and customized fasteners.

China

Anhui paiensi metal products Co. Ltd.

Manufacturer of spring pins, cotter pins and circlips

Croatia

DOREMA d.o.o.

Small private flexible company specialized in spring pins production.

Our products are targeted towards professional customers who can recognize the quality products from the cheap parts.

Billions assembled and applied in many industries such as: automotive industry, electronics, military industry, building and construction, machinery and many others.

Product range: 1,5x4-16x160

Afghanistan

Ferah Tekniker Makina

Manufacturer of spring pins, dowel and taper pins, grooved pins and angle joints 

Italy

GANDINI Spa

Distributor of retaining rings, Spiral retaining rings, wave springs, Disc springs, Washers, Elastic pins, Pins, Keys, Ground flat/bar stocks, Locking nuts, washers, Miniplast plastic parts, Metallic screws, nuts, bolts.

Afghanistan

Has Hirdavat - Has Baglanti Ele. San. ve Tic A.S.

Distributor of retaining rings, snap rings

Germany

Inovan GmbH & Co. KG

Manufacturer of coiled and slotted spring pins

Italy

INTENSE S.r.l.

Distributor for threaded inserts, bushings and sheet metal fixings

China

Jiangxi Kaixu Automobile Fitting Co. Ltd.

Manufacturer of retaining rings, circlips, snaprings, disc springs, spring pins, keys.

Italy

KRISS LOGIC SPA

Manufacturer of inserts for plastic materials, turned parts, wire thread inserts, pins, cage and self clinching nuts

France

Mecanindus S.A.

Producer of slotted and coiled spring pins, tension busches

 

Italy

Novelli Forniture Industriali

Distributor of rings, bushings, lock clips, bearing nuts, lubricating nipples, parallel keys, disc springs, pins

UK

SPIROL

Manufacturer of spring pins and coiled spring pins

India

THUKRAL PRODUCTS

Manufacturer of washers, cotter pins, linch pins, circlips, dowel pins, eye screws and wing nuts

India

TorqBolt Inc.

Manufacturer of exotic material fasteners


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