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Sherex's Optisert is the best performing round body rivet nut on the market today. 

Optisert's unique diamond-shaped wedges underneath the head gives it a superior grip that helps deters spin-out in the base material of the application. The patent-pending closed-end design provides a sealed option that does not compromise the biting effect of the wedges, delivering superior performance to other round-body, closed-end rivet nuts in the market. The seal helps keep out viscous material frommore
Unit of Measure

Specifications

Thread Size

M4x0.7

Grip Range
(Min.-Max.)

3.0 - 5.5

LB ±.38
(mm)

28.15

HD (±.50 - ±.64)
(mm)

13.93

HT
± .10

1.50

D (Max.)

7.58

ILB (Max.)
(mm)

21.65

ITD (Ref.)
(mm)

20.00

ITD (Ref.)
(inch)

20.00

Hole Size
+.15/-.000 (mm)

7.60