Totally Flat Screw 310Slim (310express)


Totally Flat Screw 310Slim

Important Key Point is 6Lobe Recess


Dear Valuable Customers,

Thank you for your corporation and understanding with SAIMA and Export division 310express.

Totally Flat Head Screw “310 Slim”,  the main product of SAIMA, have special characteristic.

Because of head height is totally flat, User does not worried about protrude of screw head part.

For your reference, M3 size, the head height is only 0.8mm!!


【Comparison of M3 Head Size】

310Slim            0.8mm

JIS  Pan Head     2.0mm

ISO Pan Head         2.4mm


”The reason working well as screw is 6 Lobe Recess.”

6Lobe is superior of torque transmission comparing with Hex Socket, recess depth can be shallow

When the recess depth becomes shallower… The head height can be lowered, And even with a low head, it can be firmly fastened because it is 6 Lobe Recess!

Please visit our web page and learn more.


310Slim has 6Lobe Recess.

※ 6Lobe means that ISO10664 ” Hexalobular” .


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