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Flat Head screw is not applicable on thin plate since you will not have enough space for countersinking. 310Slim achive nearly flat surface without the head sticking out like truss or pan head screws.  310Slim will help to optimize a compact design by saving space and weight.

310Slim will help to optimize a compact design. Underhead “R” & “Un-threaded” part is designed very small to have bearing surface wide.  Small “R” = Small clearance hole = Wide bearing surface => Stable Fastening Small “un-threaded” part = Fully threaded under the head => Best for thin plate fastening.

“6-Lobe”(Hexalobular) is a standard recess as it is well know in JIS or ISO(JIS B1015/ ISO10664). Therefore, tools are easily can be purchased anywhere at your local DIY stores, hardwear supplier, and needless to say, here at SAIMA online shop.

310Slim has "6-lobe" or "Qua" recess to make the head part extreamely thin.  Both recess have good torque transmission rather than the others such as cross recess, hex socket and the bit fits in to the recess perfectly even the recess designed shallow.  As a result, you can replace from standard machine screw to 310Slim today.

310Slim has a lot of advantage of Head Height and weight compere to the standard machine screw, low head cap or socket cap.  See the chart and you will see the difference by actual data.

310Slim can be used as same fastening torque as standard 4.8 machine screw that is certified by the below chart.  Easy to replace from standard machine screws.  Please see the chart.  As per our plating, 5μm+ thickness for steel 3Cr and and Cu+Ni plating for steel nickel plating.