Product information and specifications

Standard and metric

Answers to common questions

All cast metal products are made with 316 stainless steel.

Plastic hinges are made with acrylonitrile butadiene styrene (ABS) plastic, fiberglass reinforced, with a 316 stainless steel link.

Split jaw and sliding side mounts*

ProductItem #Tubing size
US
Tubing size
metric
ComponentComponent
size
Sliding size
mount
GEMSL-787/8″22mmPost screw (incl
2 x nylon washers)
M6 x 1.0 thread
20mm length
GEMSL-11″ 25mm Post screw (incl
2 x nylon washers)
M6 x 1.0 thread
20mm length
GEMSL-1251 1/4″3.15mmPost screw (incl
2 x nylon washers)
M8 x 1.25 thread
20mm length
Split jaw
mount
GEMSJ-787/8″22mmPost screw (incl
2 x nylon washers)
M6 x 1.0 thread
20mm length
Clamp screw w/nutM6x1.0 thread
20mm hex head cap screw
GEMSJ-11″25mmPost screw (incl
2 x nylon washers)
M6 x 1.0 thread
20mm length
Clamp screw w/nut M6x1.0 thread
20mm hex head cap screw
GEMSJ-1251 1/4″3.15mmPost screw (incl
2 x nylon washers)
M8 x 1.25 thread
20mm length
Clamp screw w/nut M6x1.0 thread
22mm hex head cap screw

*Screws manufactured in metric

Hinge specifications

Item #OD standardOD metric*Insert diameter
standard wall thickness
Insert diameter
metric equivalent
GEMSSH-78-065SS7/8″22mm.065″ stainless steel18.75mm
GEMSSH-1-065SS1″25mm.065″ stainless steel 21.75mm
GEMABSH-78049SS7/8″ 22mm.049″ stainless steel18.6mm
GEMABSH-78058AL7/8″ 22mm.058″ aluminum19mm
GEMABSH-78065SS7/8″ 22mm.065″ stainless steel 19.3mm
GEMABSH-01065SS1″25mm .065″ stainless steel 21.8mm

*Hinge outside diameter manufactured in metric

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Gemini Marine Products
information and specification sheet