Portland Bolt Lock Washer

This allows the washer to grasp adjoining materials and help prevent loosening from vibration.

Portland bolt lock washer. Split lock washers feature a slight spiral design that creates pressure to provide a type of spring action. Portland bolt has the ability to manufacture or provide nonstandard square rectangular or round washers meeting the requirements of astm a36 a572 grade 50 or f436. Lock washers portland bolt split lock washers provide greater bolt tensioning for tighter assemblies and provide protection against loosening resulting from vibration. Lock washers can be used with a standard washer to provide uniform bearing surface.

Lock washers place tension against a nut to prevent loosening due to vibration. The lock washer selection at grainger offers a huge range of choices in materials finish and bolt sizes. Portland bolt has the ability to manufacture or provide nonstandard square rectangular or round washers meeting the requirements of astm a36 a572 grade 50 or f436. Portland bolt is a manufacturer and distributor of anchor bolts and construction fasteners located in portland oregon usa.

Looking through both the astm specification f3125 grade a325 and the research council on structural connections rcsc website we have found neither mentioning the use of lock washers in a structural steel connection. As far as the washers are concerned the recommended grade is the astm f436 hardened washer type 1 or 3 depending on the type of bolt grade. Nuts our inventory of nuts include both domestic and import and are compatible for many grades of bolts in either plain or hot dip galvanized finish. Portland bolt produces bent bolts with cut threads from 1 2 diameter through 4 1 2 diameter and reduced body rolled thread bent bolts from 3 8 diameter through 1 diameter.

Zinc plated lock washer 100 pack lock washers are essential fasteners to keep lock washers are essential fasteners to keep on hand. Split lock washers provide greater bolt tensioning for tighter assemblies and provide protection against loosening resulting from vibration. These washers are intended for general use. They are used with a bolt or screw to evenly spread the load over a wider area.

1 2 2 3 4 origin. Being that a325 type 3 bolts are made from weathering steel the grade of nut used would be astm a563 grade dh3 or c3. They are the recommended washer for any fastener other than a low carbon steel bolt.