Από το τεστ αντοχής των βυσμάτων σε εφελκυσμό.
Τα βύσματα της Fischer είναι για μη ρηγματωμένο μπετό ενώ τα Hilti & Spit για ρηγματωμένο.
Bolts tensile testing. — With English subtitles (turn on Captions)
Fischer bolts are for non-cracked concrete.
Spit and Fix bolts are for cracked concrete.
Σπηλαιολογικός Ελληνικός Εξερευνητικός Όμιλος (ΣΠ.ΕΛ.Ε.Ο.)
SPELEO – Greece
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https://www.speleo.gr
[https://www.nuts-bolts-screws.net ] Welcome to Bluestar International, Exporters & Stockists of Industrial Fasteners. The company was incepted in the year 2003 as a partnership firm. We are an ISO, SA 8000: 2001 & IQCS-14001:2004 certified company. Our timely delivery, excellent pricing policy & complete customer satisfaction have helped us to gain wide client base. We are engaged in offering Metal Bolts, Refractory Anchors & Special Fastners. Our square, hexagon & self locking nuts are manufactured using high quality raw materials. Star, Tooth, Plain & Spring Lock Washers are some of our best selling products. Along with that we offer Cap, Wing, Hex & Socket Screws that are a class apart. Our Steel, Stud, Anchor & Hex Head bolts are widely acclaimed in the market. We also offer Blind Rivets, Special Fasteners & Steel Pins.