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Machine Screw |
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Description |
A straight shank fastener for binding metal to metal by going through a hole or nut that is pre-tapped to form the same configuration as the screw. |
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Applications / Advantages |
Machine screws form a fastening superior in strength to spaced thread screws. Zinc yellow screws are popular in electronics applications. Stainless Steel Machine screws are used in applications which require general atmospheric corrosion resistance, in food processing machinery and refrigeration equipment. Stainless is also superior to steel in withstanding some elevation in application operating temperature while maintaining its strength. |
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Material |
Steel: AISI 1006-1022 or equivalent steel. Stainless: SAE 18-8 Stainless Steel Passivated. |
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SEMS Screw |
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Description |
A machine screw and free-spinning lock-washer manufactured as one assembly. Steel SEMS are available with the following types of washers: internal tooth, external tooth, split-lock and square-cone. Stainless SEMS are offered with external tooth lock washers. |
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Applications / Advantages |
The washer/screw assembly makes this a locking screw with the washer providing the locking action. Machine pre-assembly provides cost saving to the end user. |
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Material |
Steel Screws - AISI 1022 – or equivalent steel.Steel Washers - Split-lock: SAE 1055-1065 Carbon Steel; Tooth lock: SAE 1050-1065: Square Cone SAE 1050.Stainless Screws - SAE 18-8 Stainless Steel Passivated.Stainless Washers - Tooth-lock SAE 4l0 Stainless Steel. |
