This causes the washer to exert a spring force between the fastener s head and the substrate which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread creating more friction and resistance to.
Helical spring lock washer standard.
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American national standard helical spring lock washers ansi asme b18 21 1.
American fastener offers industrial lock washers flat washers finishing washers uss washers tooth washers and more.
Internal use lock washers have teeth made to bite into the nut screw head and surface it contacts.
D the light helical spring washer is often used with thin or fragile materials subject to lighter loads or in applications where head height clearance is limited.
2 1 the helical spring lock washers covered in this standard are intended for general applications.
An american national standard asme b18 21 1 2009 revision and consolidation of asme b18 21 1 and asme b18 22 1 washers.
Helical split spring lock washers are available in four series.
The heavy series washers are preferred for use.
They apply greater bolt tension per unit of applied torque and provide protection against loosening resulting from vibration and corrosion.
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Helical spring lock washer as follows.
Helical spring lock washers compensate for developed looseness between component parts of an assembly distribute the load over a larger area for.
Choose from our selection of helical spring lock washers including split lock washers metric split lock washers and more.
Split lock washers with a significant reduction in washer thickness and a slight reduction in o.
Regular heavy extra duty and hi collar as given below.
Helical spring lock washers are the most common form of lock washer and are best suited to applications with smaller loads.
Helical spring lock washers made of materials other than carbon steel are available in the regular series.
High collar lock washers are a kind of split washer.
Scope this standard covers the dimensions mechanical properties and methods of testing applicable to helical spring lock washers in the regular and heavy series fabricated from carbon steel and corrosion resistant steel.
