$248 (200 pcs) 1/2"-13 X 2-3/4", Plow Bolts, Flat Head, 3 Head, Grade Industrial Scientific Fasteners Bolts Bolts,,(200,X,Head,,Industrial Scientific , Fasteners , Bolts,Flat,Plow,$248,/boatage382548.html,www.sharpvalley.com,1/2"-13,Head,,pcs),Grade,2-3/4",,3 200 pcs 1 2"-13 X 2-3 Animer and price revision 4" Flat Plow Grade Bolts Head 3 $248 (200 pcs) 1/2"-13 X 2-3/4", Plow Bolts, Flat Head, 3 Head, Grade Industrial Scientific Fasteners Bolts Bolts,,(200,X,Head,,Industrial Scientific , Fasteners , Bolts,Flat,Plow,$248,/boatage382548.html,www.sharpvalley.com,1/2"-13,Head,,pcs),Grade,2-3/4",,3 200 pcs 1 2"-13 X 2-3 Animer and price revision 4" Flat Plow Grade Bolts Head 3

200 pcs Atlanta Mall 1 2

(200 pcs) 1/2"-13 X 2-3/4", Plow Bolts, Flat Head, 3 Head, Grade


(200 pcs) 1/2"-13 X 2-3/4", Plow Bolts, Flat Head, 3 Head, Grade


Product description

  • Diameter (Nominal): 1/2"
  • Diameter (Dimension): 0.5"
  • Thread Pitch: 13
  • Length (Nominal): 2-3/4"
  • Thread Length: 1.25"
  • Head Diameter: 0.945"
  • Head Height: 0.417"
  • Feed Thickness: 0.042"
  • Neck Height: 0.5"
  • Product Class: Externally Threaded Fasteners
  • Order: Machine Thread Fasteners
  • Category: Plow Bolts
  • System of Measurement: US Units
  • Brand: Aspen Fasteners®
  • Head Style: Flat Head
  • Head Style Detail: #3 Head
  • Pitch: UNC Coarse Thread
  • Thread Direction: Right-Hand Thread
  • Material: Steel
  • Material Grade: Grade 8 Steel
  • Coating: Uncoated
  • Standards and Specifications: ASME B18.9 and SAE J429

A note on our product images: The copyrighted images are schematic representations. These are artistic renderings which may not reflect the exact appearance, proportions and/or relative dimensions of the actual products. For more precise imagery and/or technical references, please contact our customer support team.

(200 pcs) 1/2"-13 X 2-3/4", Plow Bolts, Flat Head, 3 Head, Grade

Welcome to Countryman

Unparalleled Sound at Work

Unparalleled Sound at Work

Over fifty years ago, Carl Countryman started crafting custom gear for touring rock bands and performers. Today, our family business is an industry-leading manufacturer of legendary direct boxes and ultra-miniature microphones, with the same goal of serving audio professionals all over the world with personal attention and exceptional quality. Our wide range of direct boxes and highly customizeable earsets, lavaliers, instrument, hanging, and podium microphones are all designed, manufactured, and rigorously tested at our office in Menlo Park, California.

Why Choose Countryman

Why Countryman?


Less is more. Less distance from you to the microphone means less feedback, less ambient room sound, less gain on the console for less electronic noise and more full, natural sound. Countryman microphones achieve maximum isolation by getting close to the source. Halving the distance from the microphone to the source increases the incident sound energy by four times, giving you more gain-before feedback and more headroom for the house system and monitors.


Stainless steel and aluminum bodies. Custom formulated scratch and sweatproof coatings. Aramid fiber cables skinned in chemical-resistant polymers. Countryman microphones and DI boxes are built tough from the inside out for unmatched durability. Your gear shouldn't call it a day before you do.


"Transparent" means an acoustic response that doesn't alter your sound, and a low visual profile that keeps all the attention where it belongs. We evaluate dozens of color samples to precisely match our cables, paints, and engineering polymers to carefully selected theater makeup shades.

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Learning Center


Atascadero Bible Church Relies on Countryman Mics and DI’s

“Over the years our church has tried many different microphones, with some models yielding better results than others. None have worked as well as our Countryman microphones. Their sound quality, clarity, and ability to deliver the levels we need in any situation have made Countryman the microphone of choice for every application.”

Berkeley Repertory Theatre Finds Much to Like With Countryman

Rebecca Naomi Jones, Stew, and de’Adre Aziza (left – right) wear Countryman E6 Earset microphones in Berkeley Repertory Theatre’s production of Passing Strange. Photo credit: www.kevinberne.com. Lavalier mics, earset mics, and direct boxes popular with noted theatrical organization Berkeley, CA – July 2011 Known for its core values of imagination and excellence, as well as […]

Cathedral of Faith Deploys Countryman for Clear, Natural Audio

“We use our Countryman H6 microphones for our weekly services and also utilize them for any dramas that are performed throughout the year...I love the fact that, with their dual ear loops and adjustable headframe, they provide a really comfortable, secure fit that enables one to focus on the message, or in the case of a theatrical presentation, their lines, as opposed to being distracted by an uncomfortable fit. These mics are also extremely low profile, so they’re practically invisible. Most importantly, they sound very natural.”

Countryman Audio Products A Great Fit For Wide Range Of Events At MGM Grand

Above: Jerome Lee at the console. Audio quality and consistent performance attributes make mics and DI’s an outstanding choice Las Vegas, NV – June 2013… As the third largest hotel in the world and the largest hotel resort complex in the United States, the MGM Grand Las Vegas is one of the true cornerstones of […]

Countryman Brings Authentic Sound to “Carlyle’s Picks”

"The fact that the B3’s cable is manufactured from Kevlar enables the microphone to endure some truly unthinkable punishment."
Knowledge Base

Countryman Debuts A3 Halo Gooseneck Microphone

New microphone ideal for a wide range of podium-type applications   Menlo Park, CA – InfoComm Booth #6049… Countryman Associates, recognized globally as a leading manufacturer of miniature microphones and direct boxes, is pleased to introduce the A3 Halo Gooseneck Microphone. Based on Countryman’s award-nominated A3 Podium Microphone, the A3 Halo includes an ultrabright LED […]