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According to riveting methods, Yaoda Hardware produces loose screws/spring screws, which are divided into:
Model of expanding rivet type loose screw: PF09 PF10 PF15 PF25 PF41 PF42;
Model of press riveted loose screw: PF11 PF12 PF31 PF32 PF21 PF22 PF50 PF51 PFC2 PFS2;
Loosening screws are divided into:
Spring leakage model: PF31 PF32 PF50 PFC2 PFS2;
Spring built-in model: PF15 PF25 PF09 PF10 PF11 PF12 PF21 PF22
Material classification: carbon steel, stainless steel, aluminum
Product description:
Loosening screw is also known as loosening screw, spring screw and non-loosening screw. It is press riveting or expansion riveting on the mounting plate, and the position between the plate and the plate is fastened by screws. The integral part can be firmly embedded on the panel without leaving the panel, so it is also known as not releasing screws. The outer circle of the hand screw sleeve is generally pressed with straight teeth to facilitate hand tightening or manual tightening, so it is also called hand screw or hand screw, which is easy to operate.
Common specifications:
Press riveted wing spring screw PF11/PF12/PF11MF/PF12MF series, spring screw FC-3 series, expansion riveted small space spring screw PF09/PF10 series, press riveted spring screw PF21/22 series, spring screw PF30/PF31/PF32 series, expansion riveted 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 Non-release screw PS10 PR10 N10 series, spring pin PT series, etc. (non-standard and customizable)
Spring screw components:
1. The screw part (the other end of the fastening case sheet is close to it, and the head type has a cross, plus or minus slot, quincunx slot or slotted slot to facilitate tool tightening) can be customized by non-standard Shenzhen Yaoda Precision Hardware.
2. Knob (generally straightened pattern, easy to twist by hand, usually made of aluminum, sometimes customized colors such as aluminum oxidation blackening/oxidation red are required)
3. Press (expand) the rivet sleeve (riveted on the panel)
4. Spring (easy to extend and retract the screw and keep the whole part from falling out)
After the production of each part is completed, it is assembled into a whole and the hand screw part is squeezed to make it and the riveting part are inserted together through the spring to form a complete and unbreakable spring screw.
Product material
Screw: environment-friendly material carbon steel (stainless steel);
Pressure (expansion) rivet sleeve: environmental protection material, aluminum alloy (carbon steel, stainless steel);
Spring: environmental protection material spring steel;
Knob: environmental protection material aluminum alloy (carbon steel, stainless steel)
Product application:
Loose panel screws can be used to install the PCB board, which only takes up a small space. The press riveting sleeve of the hand screw has embossed teeth, which are pressed into the case or thin sheet hole to form an exposed spring screw, and the other end is screwed by hand (that is, the hand screwed end). Because the spring is fixed inside, the screw moves back and forth relative to the other end of the sheet. This solution solves the problem of frequent removal of screws, and is very convenient and practical. Non-standard screw Yaoda hardware can be customized.