PRODUCTS ZaGO’s top tips
ZaGO, a manufacturing company specialising in sealing products, says its line of self-sealing screws, bolts, and rivets offer unsurpassable fastening and sealing power if equipment is exposed to harsh environments. Here, the company offers a few tips to consider when choosing sealing screws for future projects:
Choose the right screw material and O-ring material When considering the choice of material there are five
important criteria: mechanical properties, corrosion resistance, fabrication operations, total cost and material availability. Factors that should be considered with choosing an O-ring are the application for which the O-ring is to be used; the media to be sealed; the size of the fastener to be sealed; and the temperature and pressure to which the O-ring will be subjected.
Use a clearance hole ZaGO recommends an oversized clearance hole be machined on the mating part in order to prevent the O-ring from being damaged.
Use an over-sized head If the application requires a large opening to be sealed, an
oversized head sealing screws for complete metal-to-metal contact with 360 degree sealing power can be used.
Provide a print If an application requires a special seal screw or a
non-standard machine screw, a print can be manufactured to your exact specifications.
Use a socket button washer head seal screw If sealing of a large opening is required, use a socket button
washer head sealing screw as the larger head accommodates a larger surface to accomplish metal-to metal contact with the advantage of a low projection head.
Use a socket cap screw The 6 flat surfaces within the recess allows for high
torquing without damaging the head and requires no side clearance restrictions.
Need help choosing a product? ZaGO’s technical engineering team is always available to provide assistance in choosing the right sealing product.
Save time ZaGO is now offering non-standard machine screws without a sealing element.
Don’t be afraid to ask If fasteners with dimensions outside the standard range are needed, ZaGO can modify to exact specifications.
Advise if quick turn-around is needed ZaGO’s ISO certified in-house machining process helps to
provide customers with the best lead times and the highest quality products.
www.zago.com
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