Sheet metal mounting screw socket head with coarse thread. These screws are used for mounting the fender on the A-pillar for Lancia Delta integral. Use of this Low Cylinder Head Allen in this location is essential to prevent damage to the paintwork during assembly and disassembly. If the wrong screw is used (with a head that is too high), the head side of the door paint can also be damaged by the tight passage along the head of the screw on the inside near the A-pillar. Concerns a reproduction part inclusion socket H4. If necessary, use a washer to prevent sagging through the sheet metal. Allen screw with low head cylinder thread length 30 mm Shaft diameter thread 6 mm. Stainless steel screw instead of the original yellow passivated screws as Lancia used them. Sales per piece. Part number 9 on the technical drawing from EPER drawing number CA2C410FE51F6666958E0A50D0CF065F regarding the application to the Lancia Delta Integrale. 4 pieces of this item are required per car. OEM lancia 82466457 for reference