제품정보

차별화 된 소재와 기술로
고객과 함께 성장하는 기업 CMT가 되겠습니다.

SCREW

인서트(Insert)를 Tool에 고정(직접체결)

표면경화 처리를 통해 표면 경도를 향상(HRC68) 시킴으로써 공구수명 연장, 체결력 향상, 파단 및 고착현상 제거 등 탁월한 품질을 보장

CUTTING TOOLS
SPARE PARTS

Characteristics of screws

  • Mechanical property is excellent and dimensional accuracy is high due to cold forging process.
  • Guaranteed strength grade over 12.9 by using high tension material.
  • Looseness is minimized by managing threads a lever of 4h.

Reference number issuing method

Ex
  • S

    Form of use

    • Sscrew on type
    • Cclamp on type
    • Wfor wedge
    • Lfor locator
    • ADadjustable
    • Etcfor special
  • T

    Wrench

    • Ttorx
    • Hhexagonal
    • TPtorx plus
  • 2

    Metric thread

  • 043-

    Length

  • 60

    Angle

  • F

    Additional items

    • Ffine screw
    • Nonenormal screw
    • Mgrinding processed
    • Etcfor special
  • -HS

    High+Strength

14.9 grade

14.9 grade screw are higher toughness than 12.9 grade screws and 1,400N/㎟ of tensile strength.

Comparison of mechanical property

Grade Tensile strength (N/㎟) 0.2% Yield strength (N/㎟) Proof load (N/㎟)
8.8 800 640 580
10.9 1,000 900 830
12.9 1,200 1,080 970
14.9 1,400 1,260 1,120

X-Treatment

X-Treatment refers to CMT's exclusive technology, which uses expanded heat treatment on metal or alloy surfaces to create the hardened layer that customers demand.

Characteristics of screws

  • Outstanding abrasion and corrosion resistance
  • Guaranteed to be adherence-free, fracture-free
  • Able to adjust thickness of hardened layer
  • Able to adjust surface hardness and in-depth hardness
    - Surface hardness : over 68 HRC
    - In-depth hardness : adjustable according to use
  • Guaranteed zero-deformation after heat treatment

Testing Data

  • Sample : Low carbon steel(C:0.04%, Mn:0.17%)
  • Testing method : 2kg load, 72rpm wheel spinning speed, using diamond wheel with average particle size of 20㎛