ITEM NAME:50PCS M5 Hammer Nut Aluminum Connector T Fastener Sliding Nut Nickel Plated E8D7 50PCS M5 Hammer Nut Aluminum Connector T Fastener Sliding Nut Nickel Plated E8D7 T nut Hammer Head Fastener Nut Material: Nickel-plated carbon steel,Total Size: 16 x 8 x 6.5mm/0.63 x 0.3 x 0.26 inch(L*W*T); Thread Diameter: 5mm (M5) Used for: Insert into aluminium profile and connected together with T screw or others. Function: Fasten,They can be inserted post-assembly by dropping them into the slot. color: silver Note: These hammer nuts require a slot opening of 8mm to work properly. 3030 series extrusions, for example, have a smaller opening, making it impossible to drop in these nuts or twist them into place even if the nuts are slid or rolled in. Package Included: 50pcs* nut Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Used for: Insert into aluminium profile and connected together with T screw or others. 3030 series extrusions, for example, have a smaller opening, making it impossible to drop in these nuts or twist them into place even if the nuts are slid or rolled in.