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BaerCoil Wire Thread Inserts M 4 x 0.7 - 1.0 D (4 mm) - free running - Bronze - 100 pcs.


BaerCoil® thread inserts are the best solution for your thread repair! With them you can create long-lasting and powerful threaded connections. The inserts also ensure that you have no waste and recycle everything. The inserts are precise and wear resistant - your screw will stay firmly in place without the thread insert slipping.

The BaerCoil® thread insert is the perfect solution for damaged threads - with the same nominal diameter! For thread repair with wire thread inserts, the thread is drilled out and a new STI thread (screw thread insert) for the wire thread insert is cut. This thread is often also called STI thread (STI=Screw Thread Insert).

BaerCoil® thread inserts ensure optimum power transmission from the bolt to the nut thread - even in lightweight constructions. Due to their flexibility, they can compensate for pitch and angle errors and thus guarantee optimum power transmission. BaerCoil® thread inserts are already important components in the aerospace and automotive industries and help to reduce carrier material and use smaller, shorter bolted joints.

BaerCoil® thread inserts can be shortened, according to the required length, with a side cutter or similar.

Dimensions

Diameter 4
Pitch 0,7
Dimension M 4 x 0,7
Length 1,0 D
T (Length when installed) 4 mm
Thread length calculation 1.0 D means 1 times the diameter: 1 times 4 mm=4 mm
The nominal diameter for M 4 is 4 mm

Characteristics

Product group Wire thread inserts
Product type BaerCoil wire thread inserts
Thread standard M: Metric ISO standard thread according to DIN 13
Tolerance ISO2/6H
Direction Right
Type free running
Tensile strength at room temperature > 900 N/mm²
Material from Bronze (CuSn6, CW452K, material no.: 2.1020)
Temperature resistance 250°C long-term
300°C short-term

Applications

  • Applications in seawater
  • Best electrical conductivity

Attributes

  • Movement thread
  • Cr-Ni screws
  • Cu workpieces
  • Non-magnetic

Technical drawing

Technical drawing BaerCoil thread insert
Diameter 4
Length 1,0 D
T (Length when installed) 4 mm
F (Min. - Max. outside diameter of thread insert) 4,83 mm - 5,60 mm
P (depth) The thread insert must sit 1/4 - 1/2 turns below the surface
B (thread depth with chamfer) 6,45 mm
D (minimum depth of the core hole, without tip) 7,15 mm

Video instructions

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