SPIROL invented the Coiled Spring Pin in 1948. Coiled Spring Pins are available in three duties to enable the designer to select the right combination of strength, flexibility and diameter to suit different host materials and application requirements. Standard duty Coiled Spring Pins, sometimes referred to as “medium duty”, provide the optimum combination of strength and flexibility in nonferrous and mild steel assemblies. Standard duty Coiled Pins are also recommended in hardened components because of their shock absorbing abilities.
SPIROL offers inch (imperial) standard duty Coiled Spring Pins in diameters ranging from .031” (1/32) up to .750” (3/4). Standard materials include high carbon steel, 302/304 austenitic (nickel) stainless steel, and 420 martensitic (chrome) stainless steel; as well as 6150 alloy steel for diameters .625” (5/8) and larger. Standard duty inch Coiled Pins conform to ASME B18.8.2.
In addition to being able to purchase standard duty Coiled Spring Pins, you are also able to download 2D Sales Drawings and 3D models of all Coiled Pins through our website. Just select the Coiled Pin that you require, and then download the drawing from a choice of 40 different file types.
SPIROL’s standard offering of Coiled Spring Pins can be purchased through eCommerce in standard box quantities. Should you require a different quantity, custom size, special material or finish, please feel free to contact us directly by emailing us at info@spirol.com, calling us at the nearest SPIROL location or submitting your request for quote through the configurator.
Package Type |
N/A Box |
Units per Box |
N/A 1 |
Duty |
N/A
Standard |
Nominal Dia |
N/A .156 (5/32) in |
Length (L) |
N/A 1.500 (1-1/2) in |
Material Type |
N/A High Carbon Steel |
Material Grade |
N/A
UNS G10700 / G10740 C67S (1.1231) / C75S (1.1248) |
Finish |
N/A Electroplated Zinc |
Chamfer Length (C Ref.) |
N/A .048 in |
Chamfer Diameter (B Max.) |
N/A .152 in |
Diameter (D Min.) |
N/A .163 in |
Diameter (D Max.) |
N/A .171 in |
Recommended Hole Size (Min) |
N/A .156 in |
Recommended Hole Size (Max) |
N/A .160 in |
Minimum Double Shear Strength |
N/A 2200 lb |
Heat Treatment |
N/A HV 420 - 545 |
Length Tolerance |
N/A ±.010 in |
Pin Straightness Tolerance |
N/A .010 in |
ASME |
N/A B18.8.2 |
Weight Per Piece |
N/A 0.0050051 lb0.0022703 kg |
Order Processing Note1 | N/A Orders received after 3pm EST will be processed on the next business day. For plated parts not in stock, please allow up to 3-4 weeks for plating. SPIROL Customer Service will contact you upon receipt of your order to confirm date of shipment. |
- 1 NOTE: For shipments outside the United States, the Buyer is responsible for any additional taxes, import duty, brokerage and customs fees.