S & D Fasteners Co., LTD are producing better Self-Drilling Screws, which are the most convenient, cost-saving and reliable fastener for use. S&D self-drilling Screws has a hardened drill point that will help to drill fast and thread tapping well in structural steel and mild steel. Our high speed drilling point dies are using designed in a manner much the same as high speed steel drill bits. Our self-drilling screws have following Benefits: (1) Thrunder Drill Points are easy to start and keep steady on metal surface without sliding. (2) High quality screws with a sharp edge that increase the speed of drilling the material. (3) Drilling Points as high performance drill bit to allow faster drill feed rates and easy to remove the scrap.

DTH hammers 1. Drilling tools used in open-pit blasting 2. Drilling tools for underground mining 3. Drilling tools for anchoring and shoring 4. Drilling tools for deep hole and super deep hole drilling 5. casing drilling tools 6. Reverse circulation hammers Drill bits 1. Drill bits under low air pressure 2. Drill bits under high air pressure 3. Drill Bits under high pressure 4. Drill Bits under Low Pressure 5. Specially used drill bits Rock drilling accessories 1. Button bits 2. Shank adapters and coupling sleeve Casing systems 1. Overburden (ODEX)casing system 2. Symmetrix overburden casing system Parts of drill rigs Special related products as customers requirements

None

Strewdriver Bits,Hexagon Wrench,Magnetic Sleeve,Electric Harmmer Drill Bits,Chisels,Magnetic Pole.

Longyue Was established in 1998,located in Cangzhou which is in the industrial zone of Cangzhou city ,and enjoys good location and convenient transportation.Longyue specializes in water well drill bits,oil well drilling bits ,like: Tricone Bits (Steel tooth & TCI bit),Tri-cone Bit, Three cone bit,Tricone Drill bit,tungsten cabide inserted bits, Tricone rock bit, Milled tooth bit, Roller Cone Bits ,matrix body PDC bits, steel body PDC bit, Reamer bit, drill pipe, drill collars, engineering bits, stabilizers, for water well ,oil field, construction and underground foundation work all over the world. All of our products are in accord with API and ISO standards.

screw(drywall screws,chipboard screw,self-tapping screw,etc.),nuts(Din934),bolts(Din933,Din931)drill bits,etc..

DRYWALL SCREWS, DECK SCREWS, CHIPBOARD SCREWS, BLIND RIVETS, DRILL BITS, STAINLESS STEEL FASTENERS, BRASS FASTENERS, FURNITURE ACCESSORY SCREWS, SPECIAL SCREWS, ANCHORS, WOOD SCREWS, MACHINE SCREWS, NUTS, BOLTS, SELF DRILLING SCREWS, SELF TAPPING SCREWS,HEXAGONAL BOLTS, nuts.DIN7505, DIN7981, DIN9021, DIN933, DIN934, DIN975

1. chipbord screw, self tapping screw, self drilling screw, distance screw, wooden screw, concrete screw, machine screw, nail screw, dry wall screw etc. 2. DIN standard: DIN571, DIN603, DIN933, DIN931, DIN84, DIN85, DIN963, DIN965, DIN7985, DIN94, DIN975, DIN912 etc. 3. Wedge anchor, Nylon hammer fixing anchor, Drop in anchor, Toggle bolts, Metal frame anchor 4. Threaded rod, Hanger bolt, Toggle bolt, U bolt etc. 5. Non-standard letters. 6. Wood working drill bits, SDS Plus drill, Masonry drill etc. (wood screw DIN bolt)

ALL KINDS OF FASTENERS, SUCH AS THREAD RODS, HEX NUTS, WOOD SCREW, CHIPBOARD SCREW, BOLTS,DRYWALL SCREW, SELF TAPPING/DRILLING SCREW, FLAT/SPRING WASHER, ETC

Self Drilling Screws, Roofing Screws, Window Screws, Drywall Screws