Features of the Lightweight Screw “310Slim ®”

Reducing Weight with Screws

Iron and sten screws can also be used to reduce weight.

How Much Lighter Will It Be?!

How much lighter will it be in the end?
I compared the weight.

The Strength of the Screw Remains the Same

Even if the weight is reduced, the strength remains the same

Reducing Weight with Screws

Among the screw materials, it is better to reduce the weight with magnesium alloy or titanium screws.
On the other hand, I think there are many people who have given up due to cost problems and convenience.

◆ 310Slim ® Screws that have Rliminated Waste

It’s easy because it’s iron or stainless steel A2
Weight can be reduced

310Slim ® is made of the same iron and stainless steel as the materials used for general screws, so it is not a difficult material to process like titanium.

It is a screw that can reduce weight by eliminating waste of the head.

Those who want to quickly lighten even 1g
This screw is a must-use for those who want to eliminate protrusions.

6-lobe / Steel
3Cr(5μm+)


6-lobe / Steel
Nickel(Cu+Ni)

6-lobe / Steel
Black Nickel(Cu+Ni)

6-lobe / Stainless A2

◆ Lighter Aluminum Screws are Also Available!

It weighs about 1/3 of iron and stainless steel A2!
Aluminum screws that are lightweight and have little protrusion are also available.

Color anodized screws are also usually in stock, so they can be shipped on the same day.

How Much Lighter Will It Be?! Weight Comparison

Comparison of the weight of screws M5x10 10

31g23.5g15.1g5.1g
* Total weight of 10 M5x10
Comparing 10 hexagon socket socket socket bolts (iron and sten) with 10 310 slim ® sten, it is about 15.9g lighter
It is equivalent to about two “500 yen coins”.
Comparing 10 hexagon socket bolts (iron and stain) with 10 310 slim ® aluminum, it is about 25.9g lighter.
It is equivalent to about one “AA battery”.

Just by changing 10 machine screws to 310 slim ®, you can expect to reduce the weight by this much.

Click here for a simple weight comparison⇒

Even if the weight is reduced, the strength of the screw remains the same

Because the 310 Slim ® is made with the same strength as a machine screw,
There is no problem if it is tightened with the same torque as a machine screw.

Some people are worried about strength if the weight is reduced, but there is no problem.
Aluminum screws are about half the strength, but screws made of iron or stainless steel A2
There is no problem if it is tightened with the same torque as machine screws sold in general.

Tightening torque 310 slim

310 Slim ® (Iron / Stainless Steel A2) M2 ~ M3

M2M2.6M3
Machine screws (strength category 4.8)
Standard tightening torque*
0.170.350.63
Minimum breaking torque of the 310 Slim ®0.40.50.95
* Reprinted from Tohnichi Manufacturing Co., Ltd. Torque Handbook Vol.9 P.39

310 Slim ® (Iron / Stainless Steel A2) M4~M6

steel/stainlessA2M4M5M6
Machine screws (strength category 4.8)
Standard tightening torque*
1.482.985.07
Minimum breaking torque of the 310 Slim ®2.34.010.0
* Reprinted from Tohnichi Manufacturing Co., Ltd. Torque Handbook Vol.9 P.39

310 Slim ® Aluminum M3~M6

M3M4M5M6
Machine Screws (Aluminum, Brass, Copper)
Standard tightening torque*
0.310.741.492.55
Minimum breaking torque of the 310 Slim ®0.451.01.73.3
* Reprinted from Tohnichi Manufacturing Co., Ltd. Torque Handbook Vol.9 P.39

Lightweight screw 310 slim ® is also effective in saving space

It is also ideal for saving space because there is no protrusion of the head and securing clearance.

It’s lightweight, so it’s important that it’s hard to come out.

There is no protrusion on the head, so it will be difficult if you come out.
Even if you change the screw to reduce weight, the screw cam-out will cause
There is no point in not being able to maintain it.

Lighter screw 310 slim ® is hard to come out
There are two types of 6-lob and quo (cross hole).

  • It can also be used with commercially available cross screwdrivers and bits.