Size & Packaging - Under Head Size(Female): M6 x 15mm / 0.24" x 0.59"(D*L); Under Head Size(Male): M6 x 50mm / 0.24" x 1.97"(D*L); Nut head diameter: 12.5mm / 0.49"; Screw head diameter: 12.5mm / 0.49". The package includes 10 sets of screw posts and 1 pcs M4 wrench. Application - Fit for all kinds of DIY, leather crafts, clothing making, or as a fastener to connect two objects. Such as thin photo albums, leather bags, wooden board connections, etc. Installation - Make a hole between 0.5-1mm larger than the diameter of the female rod, put the screw and nut on both sides of the locked object, and select the appropriate tool to lock it. Notice - The thickness of the object which is locked, must be less than the length of the screw rod + nut rod, otherwise, it will not be able to tighten. Advantages - Precision mechanical thread made of carbon steel material, surface treatment is black oxide, and it has high hardness. Description:
1. Application - Fit for all kinds of DIY, leather crafts, clothing making, or as a fastener to connect two objects. Such as thin photo albums, leather bags, wooden board connections, etc.
2. Installation - Make a hole between 0.5-1mm larger than the diameter of the female rod, put the screw and nut on both sides of the locked object, and select the appropriate tool to lock it.
3. Notice - The thickness of the object which is locked, must be less than the length of the screw rod + nut rod, otherwise, it will not be able to tighten.
4. Advantages - Precision mechanical thread made of carbon steel material, surface treatment is black oxide, and it has high hardness.

Specification:
Material: Carbon Steel
Surface treatment: Black Oxide
Under Head Size(Female): M6 x 15mm / 0.24" x 0.59"(D*L)
Under Head Size(Male): M6 x 50mm / 0.24" x 1.97"(D*L)
Nut head diameter: 12.5mm / 0.49"
Screw head diameter: 12.5mm / 0.49"
Wrench: M4
Package Content: 10 Sets x Screw Post & 1 Pcs M4 Wrench