Yao da hardware professional production not to take off the screw/spring screw press riveting mode can be divided into:
Rose riveting type not to take off the screw type: PF09 PF10 PF15 PF25 PF41 PF42;
Pressure riveting type loose not to take off the screw type: PF11 PF12 PF31 PF32 PF21 PF22 PF50 PF51 PFC2 PFS2;
Don't take off the screw press spring mode is divided into:
Spring leakage models: PF31 PF32 PF50 PFC2 PFS2;
Spring built-in models: PF15 PF25 PF09 PF10 PF11 PF12 PF21 PF22
Material is divided into: carbon steel stainless steel aluminum
Product description:
Don't take off the screw also said not to take off, come loose spring screws, screw. Is the pressure riveting or rivet on the mounting plate, through the position of the screw fastening plate and plate, the whole thing can firmly set on the front panel is not from the panel, so also do not say out screw. The cylindrical hand screw set pressure generally has a straight grain, in order to hand twist or manual tighten, therefore is also called the purchase often-expensive screws or hand twist screws, easy to operate.
Commonly used specifications:
Pressure riveting type winged PF11 / PF12 series spring bolt, spring screw FC - 3 series, rose riveting type small space spring PF09 / PF10 series, pressure riveting screw type spring screw PF21/22 series, spring screw PF30 / PF31 PF32 series, rose riveting type spring screw PF41 / PF42 series, floating spring screw PF51 / PF52 series, spring screw PFC2P series, spring screw PFC2 PFS2 series, spring screw PFK series, panel screw PFHV series, not to take off the screw PS10 PR10 N10 series, spring pin PT series. (non-standard can be customized)
Spring screw components:
1, the screw part (fastening chassis on which on the other side of the sheet, head type with cross, add and subtract trough, the plum flower groove or slotted for tool to tighten) non-standard shenzhen yao precision hardware can be customized.
2, knob (usually straight lines, facilitate hand twist, material is usually aluminium, sometimes need to according to the need for custom color such as black aluminium oxide/oxide red)
3, pressure riveting set of (+), (on which riveted on the panel)
Four, spring (easy to screw out of the indentation and let whole parts out)
After completion of each parts production, assembly into one and will hand twist extrusion with pressure riveting pieces by spring set together, form a complete loose spring screw.
Product material
Screw: environmental protection material of carbon steel (stainless steel);
Pressure riveting set of (+) : environmental protection material, aluminum alloy, carbon steel, stainless steel);
Spring: spring steel of environmental protection material;
Knob: environmental protection material of aluminum alloy material (carbon steel, stainless steel)
Product application:
Not to take off the panel screw can be used to install the PCB, account for only a tiny space. Purchase often-expensive screw pressure riveting, with embossed tooth, being connected to chassis or thin coin hole, forming a exposed screw spring, with the hand twist at the other end (i.e., hand twist end). Because of its fixed inside a spring, screw in and out of the back and forth relative to the other side of the sheet. This scheme solves the need
