Slotted & Coiled Spring Pins

These hollow pins are economical, universally used shear-type fasteners that are self-locking. They’re manufactured to an oversize dimension so that when the pin is inserted into a hole, radial forces are exerted that hold the spring pin in place.

  • Common uses include dowels, spacers, stop pins and hinge pins in thousands of demanding, non-precision industrial applications
  • Wide range of standard sizes
  • Standard zinc or light oil finish – other finishes also available
  • Made by progressive roll forming flat strips of carbon steel or heat-treatable
    420 stainless steel
  • Style Choices:
    Slotted: Conventional & Type A Notched;
    Coiled: Light Duty, Standard Duty & Heavy Duty

Description

Tubular slotted spring pins are manufactured by progressive roll forming flat strips of high carbon steel or heat treatable 420 stainless steel. After forming, the pins are deburred to remove sharp edges, then heat treated to a spring temper. High-carbon (1070-1095) steel spring pins are hardened to Rc 46-53 and 420 stainless steel spring pins are hardened to Rc 43-52.

Function

Spring pins are manufactured to an oversize dimension so that when the pin is inserted into a hole, radial forces are generated against the hole wall holding the spring pin securely in place.

Dimensions


dime-2

CAD Diagram


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Minimum double shear values (lbs.) of Driv-Lok pins of various

Grooved pins

Slotted spring pins

Pin diameter

Low carbon

Shear-proof alloy steel (RC 40-48)

Corrosion resistant steel

Brass

1074 steel
and 420 SS

1/16

410

720

540

250

430

3/32

890

1,600

1,240

560

1,150

1/8

1,600

2,820

2,200

990

1,875

5/32

2,300

4,520

3,310

1,540

2,750

3/16

3,310

6,400

4,760

2,200

4,150

7/32

4,510

8,770

6,480

3,020

5,850

1/4

5,880

11,500

8,460

3,950

7,050

5/16

7,660

17,900

12,700

6,170

10,800

3/8

11,000

26,000

18,200

9,050

16,300

7/16

15,000

35,200

24,800

12,100

19,800

1/2

19,600

46,000

32,400

15,800

27,100