Self drilling screws, various special screws, bolts, cold formed precision parts, various tools and molds for cold formed fasteners.

MRX®

MRX®
Tough against salt damage and acid rain with marvellous torsional strength and corrosion resistance!

CORROSION RESISTANCE EQUIVALENT TO A2, TOUGH AGAINST SALT DAMAGE AND ACID RAIN

“ANTI RUST” property is one of the universal factors which fasteners are asked for.
Through this process of natural pursuit, MRX® was developed and now it has been used all over the world.
Corrosion resistance is equivalent to A2 and demonstrates preeminent strength against acid rain.
MRX® is proud of its popularity, especially in western countries that require durability of buildings.
In recent years, repeat order is increasing year by year also in Japan.
Suitable for common construction.
MRX

“MARVELOUS SELF DRILLING SCREW”IN EPOCH-MAKING MATERIAL THAT MIYAGAWA ORIGINAL ART ENRICHED

The popularity of self drilling screw is getting high for its reasonableness and convenience in construction material fastening. Nowadays, the position is getting more important as a main fastening item for remarkable STEEL HOUSE.
Then, the corrosion resistance and working efficiency are focused on at the same time. That is because troubles of building such as leaks starts with screw corrosion, and unusual weather and air pollution (NOx and SO2) tend to accelerate the process.
However, existing materials for self drilling screws are insufficient to obtain good balance of corrosion resistance, toughness and hardness. Epoch-making self drilling screw which cleared the issue is “MRX®” self drilling screw.
Nowadays, durability of buildings is more required than before. Then sales of this item is growing not only in Japan but also in European countries, US and Australia.

SHARPNESS AND FAST DRILL SPEED BRINGS LESS STRESS AND LABOR SAVING

Epoch-making original stainless steel, with hardness controllable heat treatment for working efficiency, holding high corrosion resistance and toughness, is used.
Drill time comparison test results of this item to 12mm thickness steel plate are excellent compared to existing one.
It contributes to labor saving and time saving very much.
MRX
MRX

CORROSION RESISTANCE EQUIVALENT TO A2 WITHOUT PLATING

Unbelievably strong against rust. Corrosion resistance is equivalent of that of SUS 304 stainless steel so it shows outstanding strength against salt damage and acid rain.
The results of strict salt spray test and sulfur dioxide test proved the performance. It contributes to safer and more durable building construction.
MRX

TOTAL COST EFFICIENCY WITH TOUGH MRX®

High corrosion resistance and pull-out strength means you can build with high durability, less maintenance cost and safety. Moreover, good working efficiency, labor saving and time saving are expected, so long term cost efficiency should be considered. After examining the characteristics of building, choose MRX® in accordance with the situation.
MRX

MATERIAL

MARTENSITIC SPECIAL STAINLESS STEEL

PURPOSE

Place with bad maintenability, plant that must avoid shut down by age-related deterioration and so on.

PROPERTY CHART

PRINCIPAL USES PROPERTIES
CORROSION RESISTANCE SCC RESISTANCE HARDNESS ENVIRONMENT MAGNETISM
FRX®-S For common construction use. B B AA C2-C3
MRX® For common construction use. A B+ A C4
GRX For drilling stainless steel plate which FRX® and MRX® can not do easily. A B A
C4
FRX®-B For common construction use. A AA
C C4
A4 For use in the coastal zone and industrial zone. AA AA C C5-I ×
FRX®-N For common construction use. A A C C4
SRX® For drilling thin steel plate for general structure which A2 can not do easily. A
A B
C4
×
DUPLEX For chemical and seawater plant. AAA AAA C+ C5-M

※These in-house test data of properties are for reference only and are not guaranteed.

POSITIONING OF THE PROPERTIES

mrxburlistar
SHAPE OPTION FORM
CAUTION

! CAUTION !

The corrosion resistance of MRX® is equivalent to that of SUS 304 in atmospheric environments. However, like SUS 410 and SUS 304, the corrosion resistance of MRX® may go down under certain environments and possible rust may cause downgrading of mechanical properties.
Please do not use under specific environments below:
●in the seawater or regularly seawater-splashed place
●Acid related place in high temperature or environment with corrosive gasses
※Please ask us some advice for the use under other specific environments in advance.

ORIGINAL DRIVE SYSTEMS

QUADREX
EIGHTPOINT
CAUTION IN THE USE OF SCREWS

CAUTION IN THE USE OF SCREWS

●Please choose appropriate screws for the material, purpose and environment.
To examine material, surface treatment, shape and environment is necessary to choose screws.
●Please choose appropriate bit for the screw recess and do not tighten too much.
If you use wrong bit or overtighten, the recess would be ruined, the head would break off or the screw would be snapped off.
●Do not do additional processing and reuse screws.
We cannot guarantee the quality of our products if you do additional processing to change the shape and performance or reuse of them.
●Do not put screws in the mouth.
Screw tip is sharp like cutlery so it is dangerous. Pay careful attention when handling and use safety equipments(safety glasses, hard hat and safety shoes).

MRX® SHAPE OPTION FORM

You can choose any combination of recess, head, threaded portion, end and point. Our products will correspond to any purpose and environment.Please select each option in the form below and send it.

RECESS ※Multiple selection enabled

CROSS RECESS (PHILLIPS TYPE)

SLOTTED CROSS RECESS (PHILLIPS TYPE)

CROSS RECESS (POZIDRIVE TYPE)

SLOTTED CROSS RECESS (POZIDRIVE TYPE)

SQUARE SOCKET

SLOTTED SQUARE SOCKET

QUADREX

SLOTTED QUADREX

EIGHTPOINT

HEXAGON SOCKET

HEXALOBULAR SOCKET

SLOT

HEAD ※Multiple selection enabled

COUNTERSUNK HEAD, FLAT HEAD

COUNTERSUNK TRIM HEAD

UNDERCUT COUNTERSUNK HEAD, UNDERCUT COUNTERSUNK FLAT HEAD

RAISED COUNTERSUNK HEAD, OVAL HEAD

UNDERCUT RAISED COUNTERSUNK HEAD, UNDERCUT OVAL HEAD

PAN HEAD

PAN HEAD WITH COLLAR

MUSHROOM HEAD, TRUSS HEAD

ROUND HEAD

BINDING HEAD

FLAT FILLISTER HEAD

RAISED CHEESE HEAD, FILLISTER HEAD

TRUSS WASHER HEAD

ROUND WASHER HEAD

BRAZIER HEAD

WAFER HEAD

CHEESE HEAD

TRUMPET HEAD

TRIANGLE HEAD WITH COLLAR

SQUARE HEAD

COUNTERSUNK SQUARE HEAD

SQUARE HEAD WITH COLLAR

HEXAGON HEAD

HEXAGON HEAD WITH COLLAR

HEXAGON HEAD WITH FLANGE

HEXAGON HEAD WITH WASHER FACE

OCTAGONAL HEAD

12 POINT FLANGE HEAD, BIHEXAGONAL HEAD

T-HEAD, HAMMER HEAD

JISF FLAT WAFER HEAD

JISF WAFER HEAD

THREADED PORTION ※Multiple selection enabled

METRIC COARSE THREAD

METRIC FINE PITCH THREAD

UNIFIED COARSE THREAD

UNIFIED FINE PITCH THREAD

DOUBLE-START THREAD

TRIPLE-START THREAD

HIGH FORM

COARSE THREAD

JIS TAPPING SCREW TYPE C THREAD

JIS TAPPING SCREW TYPE F THREAD

JIS TAPPING SCREW TYPE 1 THREAD

JIS TAPPING SCREW TYPE 2 THREAD

JIS TAPPING SCREW TYPE 3 THREAD

JIS TAPPING SCREW TYPE 3 THREAD

AANSI TYPE A THREAD

ANSI TYPE B THREAD

ANSI TYPE C THREAD

ANSI TYPE AB THREAD

ANSI TYPE BP THREAD

ANSI TYPE BT THREAD

ANSI TYPE D THREAD

ANSI TYPE F THREAD

ANSI TYPE G THREAD

ANSI TYPE T THREAD

ANSI TYPE U THREAD

END, POINT ※Multiple selection enabled

AS-ROLLED END

CHAMFERED END

ROUNDED END

FLAT POINT

LONG DOG POINT

SHORT DOG POINT

CONE POINT

TRUNCATED CONE POINT

GIMLET POINT

CUP POINT

SCRAPE POINT先

DRILL POINT

BURRLISTAR

JIS TAPPING SCREW TYPE C CONE END

JIS TAPPING SCREW TYPE F FLAT END

JIS TAPPING SCREW TYPE 1 POINT

JIS TAPPING SCREW TYPE 2 POINT

JIS TAPPING SCREW TYPE 3 POINT

JIS TAPPING SCREW TYPE 4 POINT

ANSI TYPE A POINT

ANSI TYPE B POINT

ANSI TYPE C POINT

ANSI TYPE AB POINT

ANSI TYPE BP POINT

ANSI TYPE BT POINT

ANSI TYPE D POINT

ANSI TYPE F POINT

ANSI TYPE G POINT

ANSI TYPE T POINT

ANSI TYPE U POINT

CONTACT PERSON INFORMATION FORM

Company Name(Required)
Business(Required)
First Name(Required)
Last Name(Required)
Division(Required)
Your Position
Phone(Required)
Fax(Required)
Email Address(Required)
Comments/Questions

Please feel free to call us. Ph: +81-(0)72-971-2880 9:00~18:00
[LOCAL TIME IN JAPAN (GMT+9), Weekdays]

メールでお問い合わせはこちら
Copyright © MIYAGAWA CORPORATION All Rights Reserved.