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Inserts for plastics

Inserts for sheet metal

Springs for all purposes

	Compression spring
	Extension spring
	Torsion spring
	Wire form
	Spring glossary

Speciality screws

	Pan head
	Flat countersunk head
	Truss head
	Binding head
	Screw thread

- S Tite
- C Tite
- B Tite
- P Tite

Camera screw standard

- Machine pitch
- S Tite
- B Tite
- P Tite
- Pan head
- Flat Countersunk head
- Screw length

WIRE FORM

Wire forms are designed with a wide variety of sizes and shapes. They perform the same function as a spring except that they may not have any coils and are often used as links to carry loads with a minimum deflection.

Material	Nominal Analysis	Max Temperature	Rockwell Hardness
HIGH CARBON SPRING STEEL
Music Wire ASTM A 227	C 0.70 - 1.00% Min 0.20 - 0.60%	121 ° C / 250 ° F	C41 - 60
Hard Drawn ASTM A 227	C 0.45 - 0.85% Min 0.60 - 1.30%	121 ° C / 250 ° F	C31 - 52
Oil TemperedASTM A 229	C 0.55 - 0.85% Min 0.60 - 1.20%	121 ° C / 250 ° F	C42 - 55
STAINLESS STEEL WIRE
AISI 302/304	Cr 17-19% Ni 8 - 10%	288 ° C / 550 ° F	C35 - 45
AISI 316	Cr 16 - 18% Ni 10 - 14% Mo 2 - 3%	288 ° C / 550 ° F	C35 - 45
ALLOY STEEL WIRE
Chrome Vanadium ASTM A 231	C 0.48 - 0.53% CR 0.80 - 1.10% V 0.15% Min	218.5 ° C / 425 ° F	C41 - 55
Chrome Silicon ASTM A 401	C 0.51 - 0.59% Cr 0.60 - 0.80% Si 1.20 - 1.60%	246 ° C / 475 ° F	C48 - 55