Пружинная шайба (сливовая)

Name: Пружинная шайба (сливовая)
Brand: Qianheng Fastener
Availability: InStock

Гофрированные шайбы, фиксирующие гайку от вибрации.

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Пружинная шайба (сливовая)

Heat-treated spring steel washer with a lobed inner profile that bites into the rod thread, maintaining nut preload during concrete vibration. The flower-shaped body also spreads load on the panel. Anti-rust finish; standard sizes for D15/D20 tie rods.

Характеристики

D15 / D20 tie rods
Lobed thread-gripping profile
Heat-treated spring steel
Anti-loosening under vibration
Anti-rust finish

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Технические параметры

Thread	M15 / M20
Material	Heat-treated spring steel
Function	Thread-gripping anti-loosening washer
Surface	Phosphate / zinc
Packaging	Bulk bags

МатериалQ235 / 45# steel

ПокрытиеPlain (black) · Zinc plated

НагрузкаBearing element — rated by system load

Вес единицыSquare washer 120 × 120: 0.98 kg · channel washer 60 × 140: 0.7 kg

УпаковкаCartons on pallet · marked per BOM

Вес комплектующих

Наименование	Размер	Вес	Материал	Покрытие
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

Производственный процесс

**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.

Расшифровка марок стали

Марка	Примечание
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.