Combination Nut (Butterfly)

Name: Combination Nut (Butterfly)
Brand: Qianheng Fastener
Availability: InStock

Butterfly nut combined with disc for one-piece tie rod fastening.

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Somunlar, Pullar ve Aksesuarlar

Combination Nut (Butterfly)

A butterfly nut combined with an integrated disc, giving a one-piece fastener for tie rods. Fewer parts on site and faster assembly than separate nut and washer.

Özellikler

One-piece nut and disc
Butterfly hand tightening
Fits D15 / D20 threads
Reduces parts count

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Teknik Özellikler

Thread	D15 / D20
Material	45# steel / cast
Surface	Zinc plated / black

Malzeme45# steel / cast

Yüzey İşlemiZinc plated · Black

Nominal YükInquire

Birim AğırlıkInquire

PaketlemeCartons on pallet

Aksesuar Ağırlıkları

Ad	Ölçü	Ağırlık	Malzeme	Yüzey
Tie rod (high strength)	D15 × 1000	1.5 kg	Q235 · 45# · 40Cr	Black / zinc / HDG
Tie rod (high strength)	D20 × 1000	2.6 kg	Q235 · 45# · 40Cr	Black / zinc / HDG
Tie rod section	D15 × 250	0.375 kg	45#	Black / zinc
Wing nut (shanxing nut)	D15	0.32 kg	45# / QT450-10	Black / zinc
Wing nut (shanxing nut)	D20	0.8 kg	45# / QT450-10	Black / zinc
Connecting nut	D20 × 110	0.8 kg	QT450-10 / 45#	Zinc plated
Disc nut	D20 × 50 × 110	0.92 kg	QT450-10	Black / zinc
Disc (round plate)	D15 × 100	0.53 kg	Q235 / 45#	Black
Square washer	120 × 120	0.98 kg	Q235	Black / zinc
Channel washer	60 × 140	0.7 kg	Q235 / 45#	Black
Embedded plate	D20 × 67 × 96	0.6 kg	QT450-10	Black / zinc
Cone (climbing)	D20 × 33 × 59 × 110	0.93 kg	45#	Black / zinc
Waler fastener (backing plank clip)	D15 / 10#	0.55 kg	45#	Black / quenched version
Embedded foot bolt (single-sided)	D25 × 700	2.4 kg	HRB400 ribbed bar	Black / zinc
Hex nut	D15 / across-flats 23-25	—	45#	Black / zinc
Hex nut (tall)	D15 / height 37 / AF 25	—	45#	Black / zinc
Hex nut	D15 / across-flats 50-25	—	45#	Black / zinc
Hex nut	D20 / across-flats 23-31	—	45#	Black / zinc
Hex nut	D20 / across-flats 50-32	—	45#	Black / zinc

Üretim Süreci

**Cutting & forming**Bar cutting, cold heading and plate forming to drawing dimensions.

**CNC thread rolling**Rolled threads for fatigue strength and consistent pitch diameter.

**Heat treatment**Quenching and tempering for class 8.8 and above, with process records.

**Surface treatment**Black oxide, zinc plating or hot-dip galvanizing to the specified thickness.

**Gauge & batch test**Thread gauging, hardness and tensile checks with batch test reports.

**Packing & marking**Set or BOM packing, VCI protection and seaworthy crates.

Malzeme Sınıfları Açıklaması

Sınıf	Notlar
Q235	Plain carbon steel. Economic option for light and medium formwork loads. Not heat treated.
45#	Medium carbon steel. The standard formwork tie rod grade in China; quenchable to class 8.8.
40Cr	Alloy steel. Higher hardenability and better fatigue performance than 45#; used where repeated reuse matters.
Class 10.9 bolt	Quenched and tempered alloy steel bolt used in the climbing cone set. Not electroplated without a documented baking cycle.
QT450-10	Ductile (nodular) iron with 450 MPa tensile and 10% elongation. Used for sleeves and embedded plates where toughness and castability matter.
HRB400	Hot-rolled ribbed bar (threaded steel) to Chinese standard. Used for embedded foot bolts; good bond with concrete.