PRODUCTS

EXCEL-550

Self drilling screw

EXCEL-550 (specified thick plate) has “High strength”, “Super Toughness” and “High corrosion resistance” mechanical properties. This product is a Non-circular & Low torque self drilling screw and enables tapping, drilling of the pilot hole, and fastening all in one smooth motion. It is easy to bite, stamp and fasten thick plates due to a unique drill point design and non-circular thread shape. EXCEL-550(specified thick plate) makes it possible to reduce working time and fastening costs due to improved working efficiency because of its unique shape.

　
　　

Mecanical properties

Product shape

Pan head
Designation
of thread		 Nominal
thread size		 Head
Diameter		 Head
height		 Cross
recess No.
d d dk
3.5 ST3.5 7.50 2.95 2
4.0 ST4.2 8.20 3.00 2
5.0 ST4.8 9.55 3.40 2

Unit: mm

Countersunk head

 

Designation of thread Nominal thread size Head Diameter Head height Cross recess No.
d d dk k
4.0 ST4.2 8.0 2.3 2
4.0 ST4.2 6.0 1.3 2
4.0 ST4.2 7.0 1.8 2
5.0 ST4.8 10.0 2.8 2
5.0 ST4.8 7.0 1.3 2

Unit: mm

Hexagon flange head
Designation
of thread		 Nominal
thread size		 Width
across flat		 Flange
Diameter		 Flange
thickness		 Head
hight		 Hexagon
soket size
d d s dc k
5.0 ST4.8 8.0 10.6 1.1 5.10 8.0
6.0 - 9.6 13.3 1.3 6.34 9.6(3/8)

Unit: mm

Applications

Buildings and Constructions

 

Stadiums

 

Power plant

 

Bathroom

 

Solar power generation devices

 

Orthoses

 

Outdoor play equipment (ex. Ferris wheel)