BaerCoil Wire Thread Inserts UNF No. 4 x 48 - 2.5 D (7.11 mm) -100 pcs.
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BaerCoil Wire Thread Inserts UNF No. 4 x 48 - 2.5 D (7.11 mm) -100 pcs.
BaerCoil® wire thread inserts not only ensure a long-lasting and powerful threaded connection in the thread repair, but also enable scrap recovery. The inserts also create load-bearing connections in materials with low shear strength. Thanks to their precision and wear resistance, the BaerCoil® thread inserts hold your screw firmly in place without changing the thread insert. Ideal for repairing stripped or worn threads. wire thread inserts are often used in automotive, electrical, medical, lightweight construction, and aerospace applications.
The BaerCoil® thread insert is the perfect solution for damaged threads. With the use of BaerCoil® thread inserts, the thread produced is significantly more stable than the original thread.
BaerCoil® thread inserts ensure optimum power transmission from the bolt to the nut thread, even in lightweight constructions. Today, they are already an important component in aviation and vehicle construction. They save weight and allow the use of smaller and shorter screw connections.
BaerCoil® thread inserts can be shortened, according to the required length, with a side cutter or similar.
Dimensions
| Diameter |
No. 4 |
|---|---|
| Pitch |
48 |
| Dimension |
UNF No. 4 x 48 |
| Length |
2,5 D |
| T (Length when installed) |
7,11 mm |
| Thread length calculation |
2.5 D means 2.5 times the diameter: 2.5 times 2.84 mm=7.11 mm The nominal diameter for UNF No. 4 is approx. 2.84 mm |
Characteristics
| Product group |
Wire thread inserts |
|---|---|
| Product type |
BaerCoil wire thread inserts |
| Thread standard |
UNF: American Fine Unified National thread according to ANSI B1.1 |
| Direction |
Right |
| Type |
free running |
| Tensile strength at room temperature |
>1400 N/mm² |
| Material |
Stainless Steel V2A (AISI 304, X5CrNi18-10, Material No.: 1.4301) |
| Temperature resistance |
315°C long-term 425°C short-term |
Applications
All normal uses for thread repair and thread reinforcement
Technical drawing
| Diameter |
No. 4 |
|---|---|
| Length |
2,5 D |
| T (Length when installed) |
7,11 mm |
| F (Min. - Max. outside diameter of thread insert) |
0,137 '' - 0,162 '' |
| P (depth) |
The thread insert must sit 1/4 - 1/2 turns below the surface |
| B (thread depth with chamfer) |
0,353 '' |
| D (minimum depth of the core hole, without tip) |
0,374 '' |
Video instructions
Further information
Product data sheet
Safety instructions
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