Description: 100 PSM Fasteners Spiro Brass Threaded Inserts for Plastic 4-40 X .208 This is a lot of 100 PSM Fasteners Spiro Brass Threaded Inserts for Plastic 4-40 X .208 fasteners for plastic Spiro SP has been designed to cope with the difficulties presented by hard brittle thermoset materials. The sharp precision knurl pattern cuts into these materials reducing radial stresses and allowing thinner boss walls than many other inserts. 37 degree knurl. BENEFITS Simple, press-in installation. High torque resistance. Self-aligning – easy to install. Low bursting stresses allows for the use of bosses with thinner walls, while reducing the risk of surface depressions in the plastic. DESIGN GUIDE PREPARING THE HOLE The boreholes for Spiro inserts should always be molded in order to avoid the stresses caused by a drill. The conical shape of a molded hole should not exceed 1°, and the recommended hole diameter is as measured at the level of the hole reached by the end of the insert. The upper part of the hole must not be rounded or chamfered, and be careful to avoid flaring. Hole diameter tolerance: -0.00 + 0.10 mm. INSTALLATION The insert is to be installed using a squeeze-action press and NEVER a mallet or similar tool. The insert must be free to rotate in the direction of the knurl during installation. This is best achieved by using a punch tool with either a polished face or a thrust bearing. The insert must be kept axially square during installation, as any tilting will induce lateral loads on the boss wall. The recommended hole size must not be increased beyond the upper tolerance limit, as oversized holes reduce or eliminate the self-alignment effect, which can generate lateral loads and risks bursting the boss. We’re e-liquidators. We specialize in Military, Government, Industrial and Business liquidation services, disposition and asset recovery management. Our surplus inventory comes to us from many sources, big and small: corporate clients, closing businesses, military DRMO’s, and local government agencies, and individuals. Feel free to contact us with your questions, concerns and suggestions. Contact information:We are "E-liquidators" on Facebook Google “E-liquidators” for additional informationPlease take a moment to see our current specials on eBay our other eBay listings. Powered by SixBit's eCommerce Solution
Price: 9.95 USD
Location: Chula Vista, California
End Time: 2024-12-01T18:12:48.000Z
Shipping Cost: 3.99 USD
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Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 14 Days
Refund will be given as: Money Back
Brand: PSM Fasteners
Thread Size: 4-40
Material: Brass
System of Measurement: Metric
Type: Press Inserts
Item Length: .208
MPN: SP-B-0440-PSM018164
Model: Spiro
Country/Region of Manufacture: United States
Unit Quantity: 100
