Adjustable u head and fork head screw jack is a formwork slab system support components to fixed on to scaffolding poles and verticals in construction concrete and shuttering work. Adjustable u head jack and forkhead jacks sizes is always customized according to slab system formwork main beam and second beam sizes. According to scaffolding support system, forkhead can be normal duty OD30-38mm for normal duty and OD48mm for shoring hiload system include hi load formwork frames and shoring system in OD56mm, 60mm verticals. 
Fork head screw jack is also called cross head jacks in some countries that popular used in peri formwork, doka formwork, ulma formwork system concrete slabs. 
Fork head screw jack is a modular type that can be matched us with various scaffolding systems include cuplock scaffolding,ringlock scaffolding,kwikstage scaffolding, frame scaffolding and scaffolding prop system. 
Wellmade scaffold produces all types of scaffold jacks include u jack, adjustable base, fixed scaffolding base plate, unversal jack, socket scaffolding jack base etc.
Wellmade scaffold is a leading China scaffolding manufacturer, OEm Scaffolding supplier for many famous formwork engineering companies and scaffolding companies in USA, UK, Saudi Arabia, Malaysia, Australia, South Aemerican Countries by offering customized designed scaffolding products with customers' emboss mark and logo on. 
Welmade scaffold is also exclusive scaffolding vendor for many contractors and construction companies offering BS En ASTM and AS/NZS standard scaffolding products. Scaffolding materials to oil and gas companies include hot dip galvanized scaffold tubes in BS1139/EN39, EN10219 standard, forged scaffolding couplers En74/NS1139/AS 1576 stanard as well as scaffolding boards and metal decks confirm to EN12811 and AS/NZS 1577 standard are all available from wellmade scaffold which is approved by oil and gas scaffolding standards include Saudi aramco, KNPC,KOC  and Sinopec, China petroleum. 
Get more informations about forkhead scaffold jacks, cross head screw jacks, jack base and u jack from wellmade scaffold website wellmadescaffold.en.made-in-china.com
get good price for scaffolding system, scaffolding accessories, couplers and scaffolding planks from wellmade scaffold by mail.