38mm galvanized round Insulation Self Locking Speed Washers for Insulation layer

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Insulation Self Locking Washers Specification 

Purpose: It is used to reinforce the common plate flange air duct, and to prevent the deformation and degeneration of

the shape of the air duct caused by pressure during ventilation.

Huihao company introduction 

Huihao hardware is a professional manufacturer of all kinds of insulation pins ,covers 6000 square meters
Our production including a full line of insulation fasteners:
lacing anchor                      impaling                 

CD weld pins                      insulation fixing pins

insulation hangers               perforated base pins

insulation anchors               quilting pins&duct liner pin

cup head weld pins             self adhesive insulation pins
Round or square self locking washers & stainless steel ,galvanized ,PE dome caps

Insulation Self Locking Washers Specification

Usually 300 pcs ,500 pcs ,100 pcs in one plastic ,then in one carton on the pallet ,special request can be according